Guest post by Lorie Huston, DVM

Until very recently, feline leukemia (FeLV) and feline AIDS (FIV) were both considered to be untreatable diseases, fatal once an infected cat started to show signs of disease. Recently, a new product has been introduced that may change that fact. (In all honesty, this is not really a “new” product per se, having been around since at least 2008, but one which seems to be getting a bit more attention lately.)

TCyte: A New Treatment for Feline Leukemia (FeLV) and Feline AIDS

TCyte, a new treatment for feline leukemia and feline AIDS is a lymphocyte T-cell immune modulator. In the simplest terms, that means that TCyte works on the infected cat’s immune system to improve the cat’s ability to deal with the feline leukemia or feline AIDS infection.

TCyte is used to treat cats infected with either the feline leukemia or feline  AIDS virus who are experiencing symptoms such as red blood cell or white blood cell abnormalities and/or opportunistic infections.

How Does TCyte Work?

TCyte has several different effects on the immune system of the infected cat. It helps increase the number of lymphocytes formed in the blood stream of the infected cat as well as improving the way the lymphocytes function. (Lymphocytes are specific types of white blood cells that are an important part of the immune system and they play a crucial role in the cat’s ability to fight disease. They are often decreased in feline leukemia and/or feline AIDS infections.) TCyte also increases red blood cell production, helping to fight anemia in infected cats. In addition, it increases IL-2 production, which is also known to stimulate the lymphocyte reaction against viruses, such as the feline leukemia and feline AIDS viruses.

Is TCyte Proven to Work?

TCyte currently has a conditional licensure granted by the USDA. This means that additional efficacy and potency studies are in progress. However, in a study published in the International Journal of Applied Research in Veterinary Medicine (Vol. 6, No. 2, 2008):

“A total of 23 FIV or FeLV-infected cats entered the study of which 22 qualified and completed as scheduled. No significant adverse reactions attributed to LTCI (TCyte) treatment were detected. Treatment with LTCI resulted in improvements in both clinical and hematological parameters.”

These results are encouraging. However, 23 cats is not a large number of animals. And the long-term benefits of treatment are still largely unknown although several of the cats in this study did survive for long periods. Much more research is needed in this area before we can really know how effective this product is in the long run.

Still, when you consider the deadly nature of these viruses, particularly once the red blood cell and white blood cell lines have become abnormal, this product might be worth trying if your cat is suffering from feline leukemia or feline AIDS. I have not, at this time, tried this medication in my veterinary practice yet. However, it is something I would consider should an owner be willing to attempt treatment, I think.

Have any of you had tried TCyte for your own FeLV or FIV-infected cats? If so, we would love to hear about your experience. Please share by leaving a comment below.

Lorie Huston has been practicing veterinary medicine for over 20 years. Besides a successful career in a busy small animal hospital in Providence, RI, Lorie is also a successful freelance writer specializing in pet care and pet health topics. 

Photo by Tomi Tapio, Flickr Creative Commons

342 Comments on New treatment for cats with feline leukemia and FIV

  1. But since the vet did give Bo a vaccination, what is that going to do to Bo now? Is he going to get sick faster? I’m so worried about my boy……

  2. Just wanted to post an update… Unfortunately, my cat didn’t make it 🙁 He started building up fluid in his chest and was really struggling to breathe. And by that point, he’d already had severe anemia for 2 months and had been through multiple blood transfusions. He lost most of his muscle and could barely eat or walk anymore. It was just time to put him down. He was FeLV positive which caused the anemia, and by the last week he developed wet FIP, which caused the fluid to develop.
    But I wanted to post another comment on here to urge you to try LTCI if your cat is FeLV, FIV, or dry form FIP. I wish every day that I would have gotten LTCI a few weeks sooner, and I really do believe he would have lived if he’d had time for the LTCI to kick in before the fluid developed. I couldn’t find much info on the drug, and saw several posts saying that it was a scam or didn’t work, so I waited too long to try it, but I don’t want others to make that same mistake.
    My initial vet was very close minded and stubborn, and refused to prescribe LTCI for me since she had never heard of it. But the vet I finally found during his last week uses LTCI regularly. She has had many FeLV cats recover completely, and even test negative, using LTCI. I even met one of them in the waiting room one day and talked to the owner. Her kitten weighed only 4 lbs and was nearly dead, but 2.5 years later she is completely recovered and tests negative for FeLV. My vet also said that every single cat she has treated with LTCI who followed all protocol and instructions has recovered (except for mine now, but she did agree that if it hadn’t been for the wet FIP coming into play, he probably could have been okay) Others had commented that the expense was very high, but it should only be $50-100 per injection, which was much less than anything else we’d tried previously! When I saw others say expensive, I was expecting $1000+ per shot, but it’s not that much at all so don’t let that deter you. It’s possible it may not work for every cat, but it DOES seem to work for most, so please don’t hesitate to start the treatment right away!! I couldn’t save my cat, but hopefully we can at least try to spread the word a bit more about LTCI to save others.

    • I am so sorry for your loss Amanda. Thank you for sharing.

      On another note, my 2 FIV cats that were on LTCI are doing well and healthy.

    • I am so sorry for your loss. I’ve used LTCI for the dry form of FIP and feLV with success. I’m now treating an old cat which has FIV, so we’ll see.

    • Sorry to bother everyone my Bo just tested positive for feline leukemia and we are seriously rural area. The vet gave him a feline leukemia and fiv vaccination. Did the vet make a mistake. I wasn’t quiet right about giving him the vaccine

      • If your vet gave the cat an FIV vaccination, he may also test positive for FIV the rest of his life. That’s the reason very few vets give this shot. As for the FeLV vaccination, your vet should be reported to the state board that licenses vets if he knew the cat was already positive. The shot may adversely affect your cat’s health, and it was primarily done to run up your bill (as was the FIV one). There are too many vets out there like this that over-vaccinate for personal profit with no regards for the pet’s well-being.

      • Before he gets too sick get him some RetroMAD1. It works better than anything else available and is much much more cost effective. Its an oral anti-viral that’s given 3 times a day.

          • I emailed the company and they got back to me. Its made in Malaysia so U.S. Vet’s have not heard of it. My Vet was convinced it was a scam and wouldnt believe it would work but it did.

          • I emailed the company too and nobody ever responded and some other contact I found said they do not distribute it. But what do you mean it worked? What were your cat’s symptoms and how do you know it is working? My cat is having lung lymphoma and since I have already lost all three of her kittens from FeLV, I definitely cannot lose her too….

          • @CatWhisperer…my vet as well as friend who is a microbiologist believe LTCI is a scam. I haven’t had them look over the literature on RetroMAD1, but I’m open to anything. How much did it cost for the initial treatment of RetroMAD1?

          • Hi CatWhiperer,

            I am from Malaysia and i can safely confirm that RetroMad1 homegrown here in Malaysia and it is genuine. The did contact my Vet for testing on FIV/FELv cats.

            I am not advocating any form of drugs but I have used LTCI and the results seems promising.

            If you are urgently in need of Retormad1, you can call them at 603-79607550 and you can speak to Tiffany or Wan Leng for your purchase enquiry

          • Mariangela LTCI allegedly works by stimulating the cat’s own immune system to kill the virus. I have no clue if it really works or not. RetroMAD1 is different. It is an antiviral which is not a new concept. How do I know its works? Well firstly it is being used in other industries with proven success. It is used in the water of shrimp farms to kill off a virus that affects the farmed shrimp. Secondly I know it works because my kitten was in the symptomatic FeLV phase. She has a 106 fever, her immune system was so depleted that she had skin infections all over her body. Her lymph nodes were swollen the size of grapes. He second eyelids were swollen and she wouldn’t eat or drink. She basically hid in a corner of my house waiting to die (cats usually find a hiding place when they are near death). My Vet gave her about 10 days to live. This was almost 2 years ago. As my Vets said “either your wish for a complete miracle has occurred or you proved me wrong and your mystery potion from Malaysia is keeping her alive”
            If you read the scientific literature on RetroMAD1 its basically an improvement on current antivirals that are used today with the exception that it has no side effects. AZT for example is another anti-viral that can kill FeLV & HIV but it also comes with terrible side effects.
            The cost for a 3-4 month supply is only $280 which covers the cost of the export permit from Malaysia, the air mail shipping, and the medicine. The inventor of the medicine and his staff are some of the nicest people I have ever spoken with.

          • I know very well what an anti-viral medication is, allow me to have a PhD in neurosciences with years of experience in microbiology, neurodegeneration and inflammation. First of all, I have read the literature regarding all these miracle drugs. None of them has sufficient sample number. Second, with the exception of virbagen omega that shows a study (with a very limited number of cats) where the drug can be helpful in cats with anemia, I am not aware of any other literature where the drugs have been tested on cats with lymphoma or anemia. Your cat had a compromised immune system and was suffering from an infection based on all the symptoms you are describing. It didn’t have anemia or cancer. Unfortunately this is what most of us are dealing with. I have already lost 3 cats, 1 from anemia, one from lymphoma and my third one was not producing any red or white blood cells, she died in my arms a week after her last blood transfusion. My fourth one is having a rare case of lung lymphoma. I have spent thousands of dollars for their treatments. So, I sympathize with every single person in this forum that loses a cat from FeLV. I find, though, that telling these people that if they had tried drug A or B could have saved their cats, is adding more to their pain. Every cat is different and trust me, I was the one looking for miracle drugs to save my babies and failed miserably. It is also very annoying for me to see how most vets are completely ignorant regarding the biology of drugs such as LTCI. Personally, I have tried it and it did nothing as I was told by multiple specialists it wouldn’t. Since you know so much about viruses, let me tell you that a virus can go dormant, in other words, you may manage to decrease the viral load if you are lucky and your cat may test negative (although you would need a bone marrow aspirate and IFA to know that for sure), but it is already incorporated in the DNA of the cells, so it can start replicating again at any point and this time even more aggressively, because of mutations to withstand the effect of drugs. Simple biology…I am not doubting RETROMad1 may have had an effect on your cat. But please do not present it as the miracle drug that can cure everything, because you don’t have enough proof to support that. It is very painful for any cat parent that has lost their companion to have at the back of their minds that there is something they could have done for their cats and they didn’t. I wish all FeLV-positive cats can be cured one day, unfortunately science is not there yet…

          • Please show me the scientific literature for the “hundreds of cats “, because if you google it you will see that there is NOTHING new reported, not even from the manufacturer. And you are comparing humans to shrimps (previous email) to cats…with the exception that they are all breathing, they are not the same!!!! Also HIV is the equivalent FIV for cats which is not a death sentence…to keep your facts straight!!!!

          • I know all about the dormancy of Retroviruses, again that is why I said it is a TREATMENT.

          • This whole debate is so frustrating because the manufacturers haven’t really presented much evidence.
            I think what’s happening is the disease affects cats in such wildly different ways that cat owners are comparing apples and oranges with all this anecdotal evidence. I had a FeLV+ cat live to be 9 (& he actually died from a heart condition, not cancer or anemia). If I had tried one these treatments, I probably would have declared it a miracle, although I don’t think I would have bragged that my heroic efforts and depleted bank account saved him life. On the other hand, I had others with very short lives, and I’m not going to feel guilty that I should have tried one of these “miracle” cures like LTCI, when my vet and a and microbiologist friend don’t feel like it’s going to be that effective based on the science.
            But yes, it is a moral dilemma for all of us. Should I have done more haunts everyone. But remember, most people have asymptomatic cast euthanized just for testing positive. We’ve all done way more, by letting them live out whatever time nature intended.

          • Sheri let me ask you this in all seriousness. If your cat, my cat, has a deadly disease what difference does it make how much literature is present on a medicine that may or may not treat the cat? I’ve taken my cat to the Vet numerous times over the past 2 years and had extensive blood work done and there are absolutely no harmful side effects from this medicine as far as my Vet can tell. She is no longer symptomatic. Also, in America a lot of MD’s, DVM’s and ESPECIALLY PhD’s all think they are smarter than the rest of the world and they feel that if they never heard of a medicine or didnt invent it that it must be a scam. This is a huge disservice to medicine and its patients. There are plenty of experimental treatments that are used for all sorts of illnesses that not every doctor or scientist has heard of but that doesn’t mean it can’t work. If you like I can get you in touch with someone who can get you the RetroMAD1. LTCI is $50 a shot so treatment costs in the thousands and there are a lot of testimonials from people saying it doesn’t work. I have used LTCI along with RetroMAD1 and I did not notice any difference then when I just used RetroMAD1 alone. RetroMAD1 is a measly $280 for 3-4 months of treatment which is a bargain so again I ask what do you really have to lose? That is why I came here and tried to spread the word.

            This comment has been edited by the site owner

          • I’m the site owner, and I’m going to jump in here. We welcome diverging viewpoints, but ask that you keep discussions respectful of others. For more information, please refer to our comment guidelines:

            Cat Whisperer, I appreciate your contributions to this topic, but I deleted your most recent comments and edited one comment because they violate our comment guidelines. You’re welcome to repost the information as long as you are able to state your opinion without being disrespectful to other commenters.

          • Dear all, it is really disheartening to see some of you “bicker” over such petty issues. To each is it own. We are here because we share a common bond, our love for our fur babies. I am glad that i have found this site. Without it, i may not have known about LTCI. Be it LTCI, Retromad1 or Verbagen, We want the best for our babies. Everybody has their own experiences with different drugs. Who is to say the drug i am using will work for other fur babies or the drug you are using is not good for another fur baby. So please, no bickering. Peace

          • @CatWhisperer….For me the dilemma is the cost. I rescue tame strays and do TNR with ferals. I found a sick abandoned tame cat in one of the feral colonies last week. He had an initial vet bill of $160 and needs to go back next week (thank goodness he tested negative for FIV/FeLV). If I put my own cats on an expensive treatment, it’s less money to help all these strays in my area. It’s a dilemma because I love my cats more, but I’d hate to think I was throwing my money away on some ineffective treatment when there are so many desperate strays that need the most basic care. I also help low income people who can’t afford pet food. Nevertheless, if you have a contact email that someone will actually answer, I’ll consider RetroMAD1. In the meantime, I’ll get my microbiologist friend to look over the literature on it. Thanks.

        • One more thing…even if my microbiologist friend is skeptical, it does help to hear from scientists who have no financial motivation in praising or disparaging the treatment.

          • Hey Sheri, Well I have nothing to gain by suggesting RetroMAD1. Someone initially asked me the question “how do you know it works” to which I replied as honestly and as thoroughly as possible. I had no idea that it was a baited question to start a debate as to how can I “prove” it works with data. Im not a microbiologist or a scientist and I do not have an FDA trial lab in my basement with 1000 FeLV+ cats at the ready, but I can use some common sense. When I have a headache I take an aspirin and it goes away. I didnt need to study data on the effectiveness of Aspirin as my headache going away each time I take an aspirin is good enough proof for me. Same goes with RetroMAD1. Not only did I seek out and speak with rescue groups in Malaysia who successfully used it but I spoke to Malaysian Vets as well and they all had the same success treating infected cats. LTCI has mixed reviews. I know a lady who is a Psychologist and her daughter is an MD and they treated their FeLV+ cat with LTCI and it worked. The cat even tested negative on an IFA test after several months of treatment. However LTCI did not help with his FIV and he became very sick, stopped eating, and had to be syringe fed so she used RetroMAD1 and blood work showed it brought his viral load down from 13,000 to 12 in three months!!! Her cat is now doing fine. I had a kitten that 3 different Vets said “there is nothing you can do for her”. Well apparently they were wrong because I did do something. I tracked down the guy who invented the stuff and he sent it to me and she recovered. One more thing, if cost is an issue then look at it this way. A shot of LTCI costs $50 and you have to do a minimum of 10 shots which is min $500 and that’s without a Vet adding his cost on top. RetroMAD1 is $280 and it lasts about 4 months and its administered orally. I totally understand your dilemma about not wanting to take away resources from your stray cats to give to your house cats especially if a medication doesn’t work but this one does. I take care of my own colony of 16 cats which I feed, vaccinate, spay & neuter, plus I have 3 cats of my own, one of which Im treating with RetroMAD1 and LTCI (previously) so I would never suggest anything to you or anyone else that doesn’t work or is a potential waste of money because I genuinely care about the welfare of all animals and I wouldn’t want to see anyone waste their money. I’ve even sent people my RetroMAD1 by express airmail that I paid for with my own money so at this point i’ve lost money. So pardon the portions of my posts that might come off as a little abrasive towards those who accuse me of hurting the feeling of other cat owners or accuse me of touting a medication that doesn’t work. To make a long story short, I’ve used RetroMAD1 under the supervision of a Veterinarian and he along with the rest of the Vets in his practice wholeheartedly agree that it works. Keep me posted on what your biologist friend has to say about it.

  3. I have a 2 yr old cat who just suddenly started showing symptoms and tested positive for feline leukemia. He has severe non-regenerative anemia, and has lost a lot of weight. We’ve given him 3 blood transfusions over the past 6 weeks, but they are saying he doesn’t have much longer to live, maybe 1-2 weeks. I desperately want to try treating him with RetroMAD 1. Can anyone please provide their source for ordering it? There doesn’t seem to be much info online. Please help asap! I would really appreciate it! Thank you!!

  4. Mia,

    Please read my emails from earlier in 2014. I’ve had 2 cats who had the dry form of FIP and was able to cure one and put the other in remission. There is hope. The one that was in remission was born with it and was very sickly. I ended up treating her twice and she lived to be 5 years old and was doing great. She was killed by a neighbors dog. You can treat her. The cats get lethargic, runny eyes, upper respiratory and gingivitis. When I treated them both, they no longer had these problems.

    • Brenda,

      Can you please tell me what the treatment protocol yiu used to treat dry FIP? what was the dosing of the vibragen omega your vet prescribed to treat FIP? Did you give it orally or by injection? How long do you give it for? And how did you determine it was effective? (By rechecking corona virus titer? Blood work? Or lack of symptoms?).

      If you could choose betwen vibragen omega, LTCI, or polyprenyl Immunostimulant, to treat dry FIP, is there a particular drug yiu recommend most, or a certain combination of two? When you said you treated her twice, what does that mean exactly?

      Lastly, how did your vet diagnose dry FIP? I have a cat with a very high corona virus titer, but most of blood work is normal (besides slighly low lymphocytes) and no symptoms. We are trying to decide if we need to treat him or not mostly because of the high titer? What would you recommend?

      Thank you for your help!

    • Brenda,
      Did you give interferon orally or by injection and what was the treatment protocol/dosage? How long did you use it? Thanks!

    • Definitely use Virbagen Omega! Your vet will need to figure out the dosage which is based on weight. I gave my cats shots and they had a set of 3 shots for 5 days. If the Titer count is high, don’t waste time. I waited a few months after the shots, and they were no longer showing symptoms and then retested the animals by checking the titer counts which was normal about 3 months, and rechecked the FelV by bloodwork and oral test.

      LTCI helps but doesn’t cure anything. Human interferon helps for a while, but doesn’t cure. I just treated my 1 cat (treated twice) and 3 kittens who had Feline Leukemia and now they’re all negative. I didn’t wait for symptoms to show since the disease is so fatal. When I stated treated twice, both cats were given another set of Virbagen Omega for 3 sets of shots for 5 days. It’s not cheap, but it does work.

      If you don’t have the money, try human interferon first. This worked for my cat for about a year, then I was finally able to get Omega.

      • Hi Brenda,
        Could you send me an email so I can get some further info from you on your experience with treating FeLv? I have a cat who has began showing active symptoms of his FeLv (namely non-regenerative anemia), and I am desperately exploring options to prolong his life. Thank you! You can reach me at

    • I am sorry to hear about cats with fip I will tell you my story I was a cat breeder and all was well but then I started to get feedback from new owners of kittens dying at six weeks after leaving me I used to vaccinate all kitten with every vaccine other than rabies if the kittens were not going aboard
      So I had all my cat titre tested some were 80 others were in the hundreds so I stopped breeding them for 9 months I got in contact with a company in London called Ainsworths which is a Homopathic company and they actually do a fip vaccine so before I started breeding I gave all the cats this vaccine you can get liquid pills or tablets the dose I gave was one drop three time a day for three days the two drops three times a day for three days then one drop three times a day for three days then they had one drop a day for three weeks and after that I gave one drop every month once kittens were born I gave them three drops at one day old and followed that pattern above
      Because of cost I could not afford to have all cats and kittens tested so I picked various mum and kittens from different litters and every body came back with a O titre level and never lost a kitten again I would recommend this to any one it helped me and it really is not that expensive they do have workers that do with animal orders

  5. To whom it may concern:

    you can get Virbagen Omega from AbbeyNet, their e-mail is . I got two boxes last week, because I need to treat both my cats since they are positive for FeLV, but show no signs of any disease yet. The total cost for both boxes including shipping, insurance and packaging was ~$965.


    • My cat has been diagnosed with feline leukemia. She will eat, but usually throws up before the day is over. Does anyone know some type of natural remedy that I can try to help her with this problem? I would prefer natural compared to drugs. I don’t know how long she has, but would like for her to be comfortable for as long as I have her. Thank you.

      • You need to work with your vet to figure out what is causing her to vomit, Val. There is no remedy per se for vomiting, you need to identify and treat the underlying cause.

      • Some cats just have “weak” stomachs. Have you tried different brands of food. The most digestible grocery store dry cat food I’ve found is IAMS Original w/ Chicken. I had a cat that threw up every day for 3 years until I put him on that. There are other specialized foods for sensitive stomachs as well.

        Sadly sometimes when a FeLV+ cats starts vomiting a lot, she could have lymphoma in the stomach or intestines. Hopefully with your cat, it’s just an issue of trial and error with various brands and types of foods.

        Good luck,


          • I know what you mean about dry food. I have always heard that a wet diet is much healthier. However, one of my FeLV+ cats threw up every brand of canned food I tried, even the most expensive, high quality ones on the market. He could only seem to hold the dry stuff down. It didn’t really make sense because the canned should have been much more digestible. Anyway, I hope Val’s vet can figure out what’s going on (ex: maybe an allergy to an ingredient in the cat food) and tailor a diet toward healing the cat. I know some people even make their own cat food.

    • How is Virbagen Omega administered and how often? When you say a cat is “cured” what does that mean? With retro-viruses like FIV, FIP, FeLV, and HIV, stuff like Virbagen Omega might clear the blood of the virus but there are traces of the virus within the DNA of the cells and these viruses can start to replicate in the future. Just like Magic Johnson the basketball player. He is HIV+ but due to the cocktail of antiviral medication he is able to eliminate the virus from his blood and test negitive for HIV but the virus is still in his cellular DNA and it’s possible for the virus to begin replicating if he were to discontinue his medicine. Once you get a cat who is FeLV positive to test negative is there anything that can be done to prevent the virus from replicating again after treatment? Would the FeLV vaccine help the cat build it’s own antibodies thus killing off any new FeLV virus that might start replicating?

      • To the TheCatWhisperer, I believe you completely about RetroMAD1. From everything I have researched about it, I believe it is 100% effective and yes you will most likely need to continue due to DNA replication, but at least your cat will live longer with it than without it. May I ask, where are you from?

    • Mariangela I was wondering what was outcome of treating your cats with the VIRBAGEN OMEGA? I have 5 kittens who have then virus- 3 diff litters but they got it at the foster home. Bottle raised very sad. The foster had never tested her previous cats. So it looks like it’s 1k for 2 cats treatment? I will need to do a GO FUND ME. But wanted to know if u think it works. Thank you Whitney

      • Hi Whitney,

        I have tried it to 3 cats so far, my Pippi was about 10m old and anemic when I start treating her, she passed before I even start the third circle of the treatment. Company says it works on anemic cats, but maybe if they are adults, definitely not in kittens. I treated my Chloe when she was about 1.5 yr old, she got sick and passed 4 months after I concluded the therapy. Chloe was the last one to survive of the kittens I had adopted. No success there either. My Milly is the mom and the only cat remaining. She was treated with virbagen omega, she had no signs of the disease when I started her treatment, exactly a year later she was diagnosed with lung lymphoma. She is currently on chemotherapy. Therefore, from my experience, my conclusion is that vibragen is not working on kittens and even in adult cats it maybe just delays the onset of the disease. My vet says that it works on cats that have shown no signs of the disease. I am not sure I agree with him. Chloe was not sick and still virbagen had no effects on her. I understand it is an expensive treatment and the dosage is 1 unit/kg. Each bottle has 10 units and there are 5 bottles in each box. Before you go ahead and order it, please do a CBC to all 5 kittens. The simple CBC will show hematocrit levels and white blood cell count and it’s not awfully expensive (not sure which state you are in, my specialist in Los Angeles charges $68 for the basic CBC, may be cheaper in other states/practices). If any of them, shows signs of anemia, don’t waste your money on virbagen. Of course if any of the kittens suddenly develops lymphoma (unfortunately it is not often traceable with x-rays or other imaging means and it will not show on CBC) then again virbagen will be a waste of money.
        I can only wish you the best and good luck. I have already lost 3 kittens and the mom is sick, so I know how devastating it is. I had such high hopes for virbagen, but unfortunately, in my case, it was not the miracle drug…I hope it is for you…

  6. Hi, my cat has contracted the FIP disease. Based on the research I’ve made on the Internet, there is no cure for this virus. According to my local vet here, my cat has a chance of survival for at most 2-3 days. He’s only a year old. But I’m very determined and hopeful. Please, I would like to inquire more about the medication that could help with this disease. And I live in Malaysia btw.

    • Our cat was suspected of having FIP in 2008 and was very very sick. (Definitive diagnosis is through autopsy I think) He was very very sick and became so weak we had to help him stand in the littler box. We fed him with an eye dropper and administered the steroids and antibiotics the vet gave him. Our vet said he could get better but it would come right back if it was FIP. Either we had a miracle or a misdiagnosis. Somehow out little guy survived and is still with us and is no longer little. He is a tabby weighing in at 17 pounds his top weight having been 19 pounds. He has had a couple of bouts of illness over the years with supportive treatment needed but recovered and is doing fine.

  7. Two rounds of LTCI did not work for my cat.

    My orange tabby contracted FeLV from his mother. Three months ago, at 19 months of age, he quickly became very anemic. He was given transfusions and put on Immunoregulin, Epogen and Prednisolone. Nothing worked, so we decided to try LTCI. It is a series of 3 shots given several days apart. He showed no improvement after the first round. The company suggested taking him off of all other meds, allow a few days for his system to clear them, then try another round of LTCI with the shots closer together – no more than 10 days between the first and third. We did this, but he showed no improvement.

    He developed lymphoma and is currently undergoing chemotherapy. If your cat develops anemia as a result of FeLV, and you decide to give transfusions, have the donor blood cross-matched, instead of just type-matched. We have had better red blood cell counts for longer periods of time with cross-matched blood. It costs more, but it gives better results and lasts longer.

    • Linda Shannon is there any way that you can get Omega Interferon ? Its expensive but it has been shown to revearse FeLV in some cats. Do a Google search on Dr Karen Thomas DVM Omega Interferon and read her article I think she has had some success using it. How is your cat doing now? That sucks that LTCI isnt working. Did you try the HIV drug AZT? There is also somethig made out of the Aloa Vera plant that has worked I think its called Aceman or something like that.

      • I don’t want to be the bearer of bad news, but after my Pippi, I lost a second kitten from FeLV on December 23. My 15-month old Romeo suddenly got paralyzed and died within a month and a half. The neurologist suspected lymphoma in the spinal cord. I spoke to an expert in internal medicine in Los Angeles, who is known to have saved FeLV positive cats in the past. He told me that in order for interferon omega to work, a cat should be still healthy, ergo they shouldn’t have shown any signs of the secondary disease. Many other vets told me exactly the same. I know it’s devastating, have been through it twice already within 3 months. I pray your cat will make it. Sometimes miracles do happen…

        • Thank you for responding. I’m so sorry that you lost your cats to this disease.

          Moore has lymphoma in the chest, and it has responded very well to treatment. His last x-ray showed that his chest is clear, so we are encouraged. We knew that Moore had FeLV when we adopted him, and we knew that he wouldn’t live a long life. We are only trying to prolong his life and keep him happy and comfortable as long as we can.

      • I appreciate the information, and I will definitely look up Dr. Thomas’ article.

        The lymphoma was discovered the day of his last LTCI injection, so I haven’t had the opportunity to discuss Interferon with the oncologist. Since the lymphoma is responding very well to treatment, I plan on discussing it with her at his next appointment on Monday. I was actually researching Interferon when I came across this website.

        Moore is doing fine. He is not the lively, mischievous cat he used to be, but he seems happy and is not in pain. My husband and I keep a close watch on him.

  8. I don’t know what to do? Does anyone have an advice on getting my cat to breath easier so I can try this petz oil for my cat?

    • I’m not sure what you mean by petz oil, Chad, but I’m concerned with you looking for advice on getting your cat to breathe easier. If your cat’s breathing is labored, please seek immediate veterinary attention.

  9. anybody try hemp seed oil on animals… Said it works on humans and kills cancer cells… Proven to work against cancer and prevent you from getting it?

  10. Yes your were right Sheri. I just hope I’m not out of options… I believe everything and everyone deserves a second chance. But unfortunately it does not go was we hoped for. I consider my pets my children. The stress, the pain is real. Sorry for your loss… I might be putting mine to sleep this weekend… I do not want her to suffer… I’m a guy saying this. Lol. Keep your faith and hope. Sorry for any loss…

  11. Hi guys,

    just to give you an update on Pippi’s situtation. Pippi passed on September 19, a few days after her 1st birthday. Unfortunately, I returned home from work to take her to her vet appointment and found her dead. I don’t think I have experienced a worst shock in my life.
    I had tried LTCI, it did nothing for her anemia; LTCI supposedly enhances the activity of a cell population with anti-viral properties. Having seen zero effects, I ordered virbagen omega, since I had heard such amazing things. I can now say, that the study they present is a joke. I am a scientist myself (neuroscientist dealing with neurodegenerative diseases) and when I read the scientific paper from the company related to the effects of virbagen omega in anemia, the study in reality proves that the drug doesn’t have any significant effects. I am not saying not to try it, but when it comes to severe anemia like Pippi had, I wouldn’t expect results. Of course I would do anything and pay any kind of money to save my little princess. She didn’t survive to even get the 3rd round of injections…

    • Mariangela,

      I know the pain of losing a very young cat, and it seems tremendously unfair. Please think of it this way. Even though her life was short, Pippi was loved more than most animals will ever know. I’ve had FeLV+ cats that lived to be anywhere from 8 months old to one who is now 9 years old. The disease is so unpredictable.

      Thanks for your info on LCTI and Virbagen Omega. I was skeptical of LTCI but thought of Virbagen as some sort of miracle drug. Maybe for some cats it has been, but until it’s here in the US and more affordable, I think most of us have to look for other ways of dealing with anemia, lymphoma, etc.

      Take care,


      • Thank you all for your comforting words, I am trying to deal with her loss, but it is not always so easy.
        I just hope she knew how much I loved her…

        Sheri, I was hoping too that virbagen is the miracle drug, but like you said, maybe it works for less severe cases. Unfortunately, veterinary-related research is not as advanced as we, pet owners and lovers, would have hoped.

        Although I know it is impossible, I hope that nobody else will ever experience the pain I went through during the course of Pippi’s disease, not being able to cure my pet and listening to vets telling me that she has a death sentence and only a miracle will save her. I pray that our little and adorable companions stay healthy…

    • I’m so sorry, Mariangela. Losing a cat is always devastating, but when it’s as young cat like Pippa, and finding her dead, it’s almost unbearable. My heart goes out to you. Thank you for sharing your experience with virbagen omega so others can benefit.

    • Where did you get the Virbagen Omega from? I have a FeLv+ cat and am interested in trying it. He now has non-regenerative anemia and has been through one blood transfusion.

    • Mariangela Im sorry LTCI didn’t work on Pippi. Thats strange because I know people who used it for a long time and eventually got their FeLV positive cat to test negative on an IFA! I think from what I have been reading, that there is a certain point of no return where nothing will help but for some cats LTCI does indeed work.

      • Actually, it is not strange at all. I have consulted with many internal medicine specialists, neurologists, even cardiologists, that all say the same thing; LTCI does nothing. Since my last post, I recently lost the 3rd of my kittens (one month ago, she was 2 years old). Chloe was fine, she was showing signs of increased size of red blood cells, but she was not anemic. Unfortunately, beginning of July, she got sick and within a month and half, she passed. Not only she was anemic at the time of her passing, her bone marrow was not producing any white or red blood cells. She was treated with Virbagen omega before showing any signs of anemia (January to March). My other cat, Milly, is still healthy (and I hope she remains as such). Thus, my conclusions after having battled with FeLV 3 times so far, and mind you, I went above and beyond to save my cats (acupuncture, reiki, homeopathy, chinese medications, virbagen omega, LTCI), is that if a cat is born with FeLV+, the chances of survival are minimal. Virbagen omega will not treat any anemia (especially non-regenerative), lymphoma or anything else. If a cat gets FeLV+ as an adult, when their immune system has already been developed, then virbagen omega may have some effects, will keep you posted on Milly’s condition (she was the mom of my three kittens). Someone asked whether vaccination will help. Vaccination helps ONLY to prevent (~90% success I think) getting the disease, not after. There is no point vaccinating an FeLV+ cat.

        • My kitten was born with FeLV, tested positive numerous times on both ELSA and IFA test, and had a bunch of secondary illnesses caused by the FeLV virus and while your statement is almost true about “cat is born with FeLV+, the chances of survival are minimal” I have to say that RetroMAD1 is the exception and will definitely save a sick cat regardless of age and I know this by treating my cat.
          It’s certainly disappointing that LTCI didn’t work on your cats. The cat that it did work for was an adult who contracted it from a fight with another cat. Maybe you are right when you say it only works on adults who weren’t born with it.
          As per my phone conversation with the maker of LTCI last year the reason why there are so few studies on LTCI is because the price to run a test trial per cat is about $1,000 and you need several hundred cats. Also the maker of LTCI refuses to infect healthy cats to perform the study.
          As for the vaccination, it works by building up an immunity to virus so if a cat gets infected he/she has the antibodies to then kill the invading virus. If a medication gets a cats viral load down to zero and then you vaccinate the cat wouldn’t the cat then build up antibodies to fight off any replicated virus? This is just my theory.

          • After a cat has been exposed to the virus, it has already built antibodies against the infection, which is the role of a vaccine to begin with. Further vaccination does not make a difference. The same happens in humans…the purpose of a vaccine is prophylaxis, it “forces” one’s immune system to create antibodies against an inactive/weakened form of a microbe, virus etc. to prevent illness.
            I don’t find the amount of money for the trials forbidden. I work in a lab and I can tell you simple experiments cost more than that. And I am sure they would get a lot of volunteers. FeLV is so common, which makes me wonder sometimes why not more money (and research) has been used to find a more effective treatment….It’s heartbreaking for all of us to see our pets suffer and of course the quality of life of these animals is significantly compromised…

          • Thanks for the explanation. So now that my cat has been exposed to the virus she has some antibodies? Will it be enough to kill the FeLV virus if it starts to replicate again or will I have to start giving her the anti-viral again? I don’t mind treating her with the RetroMAD1 because its so easy to administer and it has no side effects and her quality of life is that of a non infected cat. Its an incredible treatment but I just dont know if there is a way to keep the dormant part of the retrovirus hiding in the DNA from replicating.

          • You would still need to use the anti-viral. I just read some info on RetroMAD1, they say that it is expected to stop the virus from replicating. I believe more studies are needed to come to safe conclusions, because their sample size is rather small (14 cats, FIV and FelV). I am glad though that your kitty does better. To be honest, I would have tried it on my Chloe if I knew about it and could get my hands on it.
            The problem with the virus replicating is that as in humans, anything can trigger the virus to become active again, such as an infection, stress, etc.
            I’ll keep my fingers crossed that your cat continues to be healthy.

          • I definitely would not get a cat that had tested FeLV+ ever vaccinated for FeLV+. A friend found a cat who tested positive but was doing well. For some reason, her vet gave it a FeLV vaccination during one visit. I think he did it to run up the bill and acted like his mistake was no big deal. The cat died the next day. My friend was devastated and really felt like it was the vaccination that so quickly sickened her cat.


        • Mariangela — I am so sorry to hear what you have been through. You went to such extraordinary lengths for your babies–something you should be very proud of.

          Some people swear that LTCI has helped their cats, but my vet thinks it’s a scam. I also have a friend who used to be a vet and now has a Ph.D in microbiology. She looked at the research on LTCI and said it wasn’t based on “good science.” It’s hard to say what really helps because this disease affects cats so differently. People may be giving LTCI too much credit when things go right. Many FeLV+ kittens eventually test negative with no intervention other than typical good care—they just have stronger immune systems than kittens who remain positive. Then there are cats like my FeLV+ cat Sid who lived to be 9 years old (and actually died from a heart problem). I did nothing extraordinary for him other than keep him safe inside and get an occasional URI treated with ordinary antibiotics (& of course give him lots of love). Had he been on some sort of medication/supplement, I probably would have credited it with prolonging his life.

          Unfortunately the reason I think there haven’t been more studies with LTCI and other medications is that most people opt for euthanasia when they find a FELV+ or FIV+ cat, even if it is asymptomatic. It’s a horrible reality that I hope changes. Most of my FeLV+ cats have only lived 4 or 5 years, but that time was precious.


          • Just an update for you guys. It’s now 3/7/16 and I am still using RetroMAD1. My kitten is now a 2 year old cat and she seems totally fine except for some vomiting issues. I’ve had 4 or 5 complete blood works done and it’s always fine so its safe to say RetroMAD1 has no side effects. She still tests positive for the FeLV virus but she was one of the worst cases to ever be treated with this medicine and the vet gave her about 10 days to live. Sooner or later she should test negative since RetroMAD1 is an antiviral and it inhibits viral production. I am just a little worried about her vomiting. I notice a lot of hair most of the time so I can attribute most of it to hairballs but sometimes her stomach must just be upset. Pepcid helps.

          • Unfortunately, I can now say that vibragen omega is not working as advertised. My Milly was treated last year and the vet said she shouldn’t get sick. Milly was doing great, her blood work was good, but last week she became lethargic. Took her to the vet, her blood work is excellent, better than in January, but after doing x-rays, we found a mass in her lung. Biopsy showed it is lymphoma. On top of that, on Tuesday, she started dragging her back legs. She is currently on chemo (CHOP), and although we only had her first session, she tolerated it very well, no vomiting, no loss of appetite. She can now walk and she doesn’t drag her feet anymore, vet said that would happen after prednisolone treatment if she had a tumor in her spinal cord. If she responds to treatment, she may have 9-10 months of life. I guess the only thing I can do is value my moments with her and try to keep her comfortable. I pray for the day a treatment will be available…

          • Sorry if I’m posting this twice, but it didn’t look like my previous comment showed up. @TheCatWhisperer – I am so glad to hear that your kitten is doing so well! 🙂 Can you please please share your source of where you are getting the RetroMAD1? I really want to try it for my cat, who doesn’t have more than a week or two left to live. I would need to get an order in for RetroMAD urgently though, to have any chance to save him, so please let me know! I really appreciate it!!!
            arf3420 at

  12. Hello… I have a cat also that in an X ray shows a small tumor. She is only 2 years old. I don’t know what to do my vet isn’t trying to prescribe me with LTCI. I am willing to try anything to give my child a second chance… So any information will help me. Please and thank you…

    • Chad, I’m not sure what you mean by “my vet isn’t trying to prescribe you with LTCI” – did you mean he/she won’t prescribe? If so, I’d get a second opinion from another vet.

    • Your vet may be like my vet who believes it’s a rip off, although I think my vet would order it if I insisted. However, he really doesn’t want to be a part of me spending that much money until there are legitimate clinical trails on LCTI.


  13. I just treated my 10 month old Siemese kitten (Cotton) with LTCI and she does better every time. I re-tested her FeLV which wasn’t a strong blue like the previous test. I’ll treat her again with Virbagen Omega to see if I can weaken the virus some more. She did weigh 4.2 lbs and is now up to 8 lbs. I will start giving her LTCI once a month just to keep her strong and healthy. There’s no side effects and she does respond to it. When stressed, her eyes and nose runs, but she’s eating good. I’m trying to get her healthy so I can vaccinate her, which if I do that, that will bring her down a bit.

    In response to the Jackson kitty, so sad to hear about a tumor. LTCI will help him with his lethargy but will do nothing for the tumor. If you can get him to do better with the FeLV, maybe eventually you can do chemotherapy. Try to get him stronger and put on more weight on, then you can try to deal with tumor. Like I’ve mentioned before, LTCI makes them feel better.

    Good luck.

    • Brenda, if you get your FeLV positive cat to test negative do you think that vaccinating her will be beneficial? I use RetroMAD1 on my FeLV+ kitten that was given about 10 days to live and now she’s a year old. She was the sickliest kitten i’ve ever seen but now every single illness and complication caused by the FeLV is gone. No more runny nose, stuffy nose, swollen inner eyelids, balance issues, skin infections from such a weak immune system, vomiting, all gone!! I wholeheartedly believe she will test negative on her next text but the problem I have is not knowing what to do next? I know that she tested positive on the IFA which means the virus is embedded in her DNA and can replicate at anytime in the future but would vaccinating her give her resistance to the virus and enable her body to fight the virus when and if it does start to replicate? What’s your opinion?

      • TheCatWhisperer – what type of symptoms did your kitten have when you started using the RetroMAD? I have a 2 yr old cat who just started appearing lethargic and losing weight about 2 months ago. We had him neutered a few weeks before that and thought it was hormone related, but at the vet checkup he tested positive for feline leukemia. He declined very quickly, and is now just skin and bones. He has severe non-regenerative anemia, and we just got his third blood transfusion yesterday. The transfusions help, but only for 1.5-2 weeks before his red blood cells are fatally low again. He still eats and drinks pretty well, the only symptoms are being weak, losing weight, and the anemia. He may only have another week to live, and we’ll have to euthanize unless we can find hope in some other treatment. I don’t want to just keep cycling him through tranfusions with a poor quality of life. I’d do anything to save him! Do you think the RetroMAD would help?? Where do you get it from?

  14. Stacey,

    I am truly sorry to hear about your kitten. FeLV is so unpredictable. I’ve seen some not live to their 1st birthday, but my oldest one is almost 9 years old.

    I haven’t tried LCTI. I’ve spoken to two vets about it who both think it’s a scam. One gave me a scientific explanation saying it isn’t targeted enough to specific feline immunodeficiency viruses. There are also no major objective scientific studies on its efficacy which also makes it less than credible. However, some owners feel it has helped their cats. Your problem is the urgency of Jackson’s situation, and I think LCTI is given more to slow the virus down early in its stages rather than help shrink tumors. I keep scouring the internet for new info on it, but this site probably has more comments about LCTI than most others.

    It may be worth a try if you can afford it, but you could also try some alternative treatments. There is a lot out there on homeopathic treatment of cancers in cats. I don’t know much about it, but there are also vets that specialize in naturopathic medicine for pets.

    Good luck–my heart goes out to you. This is so tough.


    • LTCI from what I understand (I am not a Vet or Scientist or PhD but I have researched retro-viruses, FeLV, anti-virals, and holistic cures with OCD like intensity) LTCI is not supposed to be specific to target the FeLV virus, it is supposed to restore the cats immune system that gets destroyed by the FeLV virus. That’s why a lot of people use it in conjunction with an anti-viral such as the HIV medication AZT as a two phase approach, one to kill the virus and one to boost the body immune system to help it kill the virus and ward off any secondary illnesses.

  15. Hi all,

    My 9 month old furbaby (Jackson) was diagnosed FeLV+ a few days ago after I rushed him to the vet due to lethargy and laboured breathing – Test results have shown that he has lymphoma, a 5cm size tumor in his chest cavity, which is linked to his FeLV status. I am desperately looking for alternative treatments to just using cortisone shots to make him comfortable until he can no longer fight this awful disease (he has an estimated 6months left). The Oncology specialist advised us against putting him through chemotherapy due to how sick he is and his age (and obviously his FeLV+ status). The cortisone will apparently shrink the tumor a little bit. I am wondering if he was treated with LTCI for his FeLV, would the tumor possibly improve too?

    Any helpful information anyone has is MUCH appreciated!

    Thank you


  16. Hi All,

    I have another question…The internal medicine vet insists on keeping Pippi on cyclosporine although she tested FeLV+ in her bone marrow. I am thinking of taking her off, because cyclosporine never helped (I would say the contrary) and I don’t get why we should continue suppressing her immune system since she has a virus!!!!Can you guys share your experience regarding treatment when your cats tested FeLV+? Did you give any immunosuppressants?


    • I am not a veterinarian but I have read that you should not suppress their immune systems and my Vet is always extra careful to make sure anything he prescribes does not suppress the immune system. How is your kitten doing?

      • Hi,

        Veterinarians frequently use immunosuppressants–albeit with caution–on FeLV/FIV cats. When the cats get cancer, they can become very anemic as their white blood cells attack the red ones (esp. if the cat concurrently is battling the hemobart parasite). For my FeLV+ cat who developed lymphoma, the steroids were the only that kept his white blood cell count down for a while. They didn’t save his life, but gave him a little extra time.

        Another FeLV+ cat of mine has chronic stomatitis. His immune system is basically attacking his gums–its like the body is allergic to its own teeth. He’s had many teeth pulled, but there’s still redness about the remaining teeth. An occasional steroid shot keeps the inflammation down.


  17. In response to your question regarding LTCI and Virbagen Omega. I started VO a few days later after LTCI. My vet contacted LTCI and it will not interfere with VO. My kitten got diarreah from VO treatments so I had her on Science Diet Gastrointestinal to help with loose stool. You won’t notice improvement of VO until you finish all sets of shots.

    Good luck!

  18. Hi everyone,

    I had my vet contact Virbagen Omega directly and the medicine was shipped from UK by Medication has to be refrigerated. Shipping costs around $1,000 from UK to Houston, TX. FDA does require a letter like they use to. I was not required to have a letter this year like in the past since it’s more common Virbagen being brought in. I’ve had the medication shipped 3 times now and the price keeps going up, but it’s worth it. I order enough medicine to treat my animals at least twice in case the first time doesn’t put it in remission. I’ve treated 2 cats with FIP and both went into remission. I’m now treating my 11 month old siemese kitten and she’s doing well, but prone to upper respiratory infections off and on. I’ve given her 2 sets of LTCI and each time she does better, it bring them up and when I notice her eye running or her nose getting stopped up, I start with the shots again which lasts for months. With love and care your cats can live through FIP and Feline Leukemia. My positive FIP cat is now 11 years old and healthy. If I can get my siemese kitten past the 1 year she could possibly live a long life. She’s eating, playing and growing, and plays with my other cats. I vaccinate them and they have not gotten Feline Leukemia from her.

  19. Hi everyone,

    I found a company in the UK that will ship virbagen omega to the US. It’s not cheap, but it isn’t as expensive as other people have paid when they go through vet hospitals. I have a question for people that have tried both LTCI and VO. How long after the end of the LTCI treatment did you start your cats on virbagen?Pippi’s LTCI treatment should be done early next week and I am assuming that, if everything goes well, I may have the VO by the end of next week.
    Any advice would be very helpful


    • Who will ship the virbagen omega and can it be shipped to a cat owner or does it have to go to a vet?

      • I get it directly from them, because I am a researcher and it gets shipped to the university I work. I have the impression that they may not ship it to owners and a vet prescription may be required. Best to contact them and ask them, their customer service is phenomenal, they are very quick with emails and shipment as soon as payment has been cleared. The downside is that if you order it through a vet, it may cost more; one of the hospitals in LA was asking me for $1,800 for two boxes (they said they couldn’t just order one, which is what I needed for Pippi). I would suggest to talk to your vet, and try to work it out with them. Please let me know if you have any more questions. One more thing…the medicine works ONLY IF your cat has shown no signs of secondary disease. Don’t waste your money if your cat is already showing signs of anemia, lymphoma etc. I used it to help my Pippi, who was suffering from severe anemia, and it did nothing. Now I use it on my Milly and Chloe, but none of them has shown any signs of secondary disease yet. My vet said that since they haven’t developed any secondary disease, they shouldn’t get sick. Fingers crossed…

  20. Hi Mariangela,

    I have used LTCI on my FIV kitties and have good results. I also understand that my Vet is using LTCI for FeLV kitties and an the results are also promising. Hope all goes well for you and kitty. Hang in there.


    • Thank you Suzie for your kind words and support, I am devastated knowing that there is no treatment for FeLV so I will do anything in my powers to save her.

  21. I’ve been treating my kitten with LTCI and have good results. She’s more active, eats better and seems to be in remission. I’ve treated her with virbagen omega and am getting ready to treat again. She is a very strong positive. She looks very healthy but would continue to get upper respiratory infections. I have not tested her yet, but will do so prior to treating with virbagen. Start immediately with LTCI and keep going.

  22. I’m very sorry to hear about your kitten. I hope you can get the Virbagen Omega as soon as possible. I haven’t used either, but I hear that it is more proven and tested than LCTI.

    Also, have you had your kitten tested for the Haemobartonella blood parasite? That caused anemia in one my FeLV+ cats and was easily treated. Good luck.


    • Hi Sheri,

      we originally thought she had mycoplasma and we started her on doxycycline and prednisolone. However, her response was rather mediocre and she needed a second blood transfusion. After that, we added cyclosporine, but had no effects. After she had her third blood transfusion, we did the bone marrow aspirate and found the FeLV.

      Thank you for your kind words, I am keeping my fingers crossed…


  23. Hello,

    my 10-month old kitten is suffering from severe anemia due to FeLV that was detected in her bone marrow (she had tested negative for the ELISA test). I am desperate, because I love her so much and I don’t want to lose her. My vet managed to get her hands on some donated LTCI (so I don’t even have to pay for the treatment, God bless her!) and we did the first injection last night. Does anyone have a similar experience? Did you get any promising results? I will contact Virbac tomorrow in Greece and ask them if we can get our hands on any Vibragen Omega too. Fortunately, my mom has two vets for our cats in Greece that may be able to prescribe some VO if the company tells me that they need a European prescription and have it shipped over (if doable). I know it is almost impossible to get our hands on VO in the States, but was anyone fortunate enough to be able to try the drug on their FeLV+ cats? Any help would be very much appreciated!!!!

    Thanks in advance

  24. I have used ltci and it works. I have a 10 month kitten with feline leukemia and is doing well. I also used omega interferon and it puts cat in remission.

    • Hi Brenda,

      I could really use your help on that. You said you managed to get your hands on Virbagen Omega from the UK. How did you do that? I contacted one of the suppliers and what they told me was
      “Unfortunately as the Virbagen Omega is a refrigerated item, and is only transported in the UK on next day courier services, we are unable to offer a delivery service outside of the UK.

      But if you did want to purchase this product from VioVet (after checking to see if you can import this – you may need import licences or have import taxes applied – so please check with your local customs offices regarding this first), you could but you would have to arrange your own courier collection though.”

      They said that a prescription from a US vet would suffice, but I am not sure how I can work around the delivery issues

      Any help would be appreciated

      Thank you


  25. Hello guys! I hope someone can help me here.

    Do you know something about the use of LTCI, from t-cyte, (approved for FIV/FELV) for FIP?

    Searching the internet i could only find the Healing Heart cats case, examiner article and Emmit case, sounds promising, so why arent more research about?

    I have two kittens with the dry form, being treated with human interferon, we dont have feline omega or LTCI here (Brazil), and its very expensive to import, so I have to get to a conclusion before importing.

    Thanks very much.

  26. Hi all,

    It has been a year since i last wrote about my FIV+ fur kids. As i have mentioned 1 year, 3 has been diagnosed with FIV+. Last week, i did the blood work on the 3 babies and now i have 2 FIV+ babies.

    What happened? I am shocked. All the doctor could say was that the earlier results could be inaccurate and from my understanding, you could only get a inaccurate report if your fur baby had taken FIV vacine which my fur kids did not.

    Up date on my 2 FIV+ fur kids. They had their LTCI one year ago and so far they are healthy except for the off and on flu, eye infection and now gastro prob.

    I am also trying other holistic methods with them ie by applying pure essential oils on them.

    love to all 🙂

  27. I forgot to mention that my siemese has Feline Leukemia. This is the first cat that I’m treating with Interferon. I have treated FIP with Interferon Omega and both cats ended up being cured, testing negative.

    • Brenda do you know of any FeLV cats that tested positive with both the ELISA & IFA tests who eventually tested negative after treatment with either Interferon or Interferon Omega?

  28. I’ve ordered and used the LTCI. My siemese kitten stopped having an upper respiratory and was acting like a normal kitten. There are no side effects. I do recommend it! I’m now treating her with Interferon Omega which I got from UK. She’s not showing any signs of being sick, so hopefully it’s in remission.

    I’ll keep you posted.

  29. I had 2 cats who were FIP positive. One was born with it and the other caught it when she was less than 1 year. I used the human interferon which helped for a while and I eventually ordered the Interferon Omega for UK. It was expensive but worth it ($1,200). The cat that caught the FIP when 1 year old ended up being negative. She had all the clinical signs and is now 10 years old and healthy. My other cat who was born with it ended up living to 5 years old and then was killed by a dog. She had no FIP symptoms after being treated twice. I ended up pulling her teeth due to gingivitis. I had some Interferon Omega left over and then treated a cat with FelV and he ended up coming up negative after the treatment. I’ve had great success treating FIP with Human interferon and Omega. I am now dealing with FelV. I have a 5 month old siemese who is becoming anemic. I’m presently getting ready to order Omega but will try LTCI first. I’m going to try LTCI and will keep you informed.

    • Wow, that is certainly a testament to the effectiveness of interferon Omega, Brenda! I’ll be interested to hear how the LTCI works for your cat.

    • Hi — I was wondering what you meant by FIP+. My vet says there’s no easy test for FIP (unlike the ELISA for FIV/FeLV). He can check to see if the cat has been exposed to the corona virus, which causes FIP, but then again a lot of cats carry that virus. In only a few does it really mutate into FIP. Years ago, I dealt with one stray cat that had developed FIP, and he only lived a week after showing signs of the wet form (stomach very bloated). I wish I’d had something to help prolong his life.



      P.S. That’s horrible about the cat overcoming disease but ending up being killed by a dog at such a young age. I never let my babies outside…just too many hazards out there.

  30. I see your point about personal stories by pet owners. When considering LTCI, I scoured the internet and just couldn’t find anything compelling. It seems to do no harm at least, but my vet is pretty adamant that it’s a rip off. I would love TCyte to prove skeptics wrong. I desperately want something to work.

    Has anyone heard of a cat in clinical stages (anemia, stomatitis, and other typical FeLV+ symptoms) that improved after the use of LTCI?

  31. I have 5 FeLV+ cats and have been on the fence about TCyte. A friend of mine who is both a veterinarian and a ph.D in microbiology does not feel it would be effective after reading the literature on it. She says it doesn’t target the virus specifically. Also the main “scientific” article on it had data that is all supplied by the manufacturer.

    I feel if this were legitimate, there would be clinical trials. If these trials were wildly successful, LTCI would be a world sensation. My friend also questioned why it’s on conditional approval by the USDA but not the FDA, who approves most legitimate vet medicine. Finally, the guy that developed LTCI–Dr. Terry Beardsley–is now peddling ProBoost, an anti-aging supplement for humans.

    I really hope this stuff does work, and that someday clinical trials will support it, but my own vet says he feels it is way too expensive for something that is unproven (i.e. “snake oil”). The solace I take in all this is that I have been lucky enough to have most of my FeLV+ cats asymptomatic for years (the oldest is now 8 yrs old), but one is struggling. Maybe LTCI would help him, but with no clinical trials by objective parties, I worry it could not only be a rip off, but even hurt him.

    So please, TCyte…if you have a product you believe in …prove it through clinical trials to those of us who would gladly do anything to help our “babies.”

      • Hi Ingrid

        Greetings from Malaysia. My 2 cats have used the TCyte and so far the results are good and they seem to be doing well.

        Best Regards and Happy Thanksgiving

  32. Hi All,

    sorry for the late reply. I could not obtain the Interferon Omega (Virbagen Omega) as despite repeated emails, there is no reply from them. Further i understand that the price of Interferon Omega (Virbagen Omega) has increased dramatically.

    So i decided to give LTCI a try. My vet at AMC was kind enough to import the LTCI. My kitty has had 3 injections and after that we did a blood test and everything seems good. That was 1 month ago and last weekend, did another test and the results was also good except for her sugar level which was slightly higher. I am still monitoring my kitty and will run test on her in another 3 months time.

    Will keep you posted on her condition.


  33. Suzie,

    I have heard wonderful things about Interferon Omega. Unfortunately it is not available in the US. I may start one of my FeLV+ cats on LTCI (Tcyte) soon but of the 2 drugs, I would much rather be able to do the Interferon Omega. More research has been done, and there are valid results indicating its efficancy. I hope you can get your cat on that and comment on results.

    As for LTCI, I had hoped that the people who responded on this forum had actually tried it. I’m also scouring the internet and wondering why there aren’t way more comments.

    By the way, I have adopted 5 FeLV+. The oldest four range from ages 4 to 8 years old and have not been on any medication other than Azithromycin or Convenia and sometimes steroids from time to time for various ailments. They’ve beat the odds, but I just got a young one (1.5 years) who has stomatitis and other clinical symptoms. Just wish I could get him on the Interferon Omega…but for some reason, the US is behind on this one.


      • I’m in the US so I can’t get Interferon Omega (Virbagen Omega). Suzie was the one who said something about getting it imported from the UK for her cat. I think it has to be shipped refrigerated, but maybe that can be done to her country. I hope so.


        • Sheri Inteferon Omega can and is shipped to the United States. There are two Vetenarians that did studies on FeLV+ cats and Omega Inteferon and they both said in some cases the cats became negative. One Vet is Karen Thomas DVM and the Vet is a man but I forgot his name. If you google her I’m sure you will find the article and the other article by the male Vet.

    • I used it for a few months for my boy who is around 6 or 7 years old (was a stray) I didn’t feel there was enough of a difference to warrant continuing its use for the cost but he also doesn’t show any symptoms of being FIV+ other than a more than normal build up of plaque. I can’t say how it works for FeLV+ but that was my experience with LTCI. If the cost was lower I would have considered leaving him on it a bit longer to see but I wasn’t really impressed. My vet thought that it may have more of a noticeable impact it were a cat that was experiencing problems vs one that didn’t have much going on. Not sure if she was right but that was her first experience with it too.

      • I don’t blame you for discontinuing LTCI on your FIV+. My mom has 3 FIV+ cats, and they seem as healthy as her other cats, although one did have some minor dental problems when we found him.

        I’m thinking about using it on a symptomatic 1.5 year old FeLV+ cat that I adopted a few months ago. He’s constantly congested and has stomatitis that won’t clear up. He’s been on 2 courses of antibiotics and had about the half the teeth in his head pulled out during a recent dental. All this hasn’t affected his appetite. His former owner didn’t feed her cats well, and he’s about to eat me out of house and home. That’s a good sign, but I don’t see him living as long as my other positive cats without some help. My vet is advising me against LTCI simply because he feels it’s too much money for something that hasn’t been extensively tested.

        Have there not been any clinical trails with results published in major journals? I’m torn here. I don’t want to sit back and do nothing for the little fellow, but the initial 2-week treatment of LTCI will cost me $250 (for 3 shots). Just wish it were a “miracle cure”…but that’s still a long way away I suppose.



  34. Dear Ingrid,

    Thank you so much for your reply. I live in Malaysia. So far only 1 cat has been tested for FIV+. I will be sending the other 4 cats for testing this weekend.

    I have read about the LTCI drug. However, this drug is not available here. Can you advice how i can get the drug sent out to Malaysia.

    My vet has advised that i try Interferon Omega which i may have to import from UK.

    Appreciate some advice.

    Desperately thanking you.

    • You’d have to have your vet look into getting LTCI. Suzie. I’d recommend that your vet contact the manufacturer directly.

      • Dear Ingrid,

        I have spoken to my vet and they have tried to contact the manufacturer for LTCI. Unfortunately, that was 4 days ago and the manufacturer has not reply to my vet’s queries. My vet is also willing to do the test trials in Malaysia. Is there anyway you can help us obtain the LTCI to be sent to Malaysia.

        Would most appreciate your help.

        Thank you

        • Unfortunately, I can’t help you with obtaining the LTCI, I have no connections to the manufacturer. I suggest that your vet keep trying to contact them.

        • Hi Suzie,

          I am also from Malaysia and facing a similar problem with my cat.
          If you are located in Kuala Lumpur, try visiting AMC.

          They can import and administer LTCI to your cat.
          The treatment cost about RM300+ per shot though.


          • Hi Suzie

            One of your cats tested negative for FIV using LTIC? Did your Vet think it was the cats own immune system or was it the LTCI? I was wondering if a cat has FeLV and the LTCI makes the cat test negative would the vaccine work to keep it from coming back? From what I know once the FeLV virus enters the bone marrow it hides in the DNA and can come back at a later time. I was wondering if you vaccinated the cat would it be able to fight off the virus once it starts to reproduce from the bone marrow.

      • Hi Cat Whisperer,

        sorry for the late reply. was not monitoring the post.

        A little history on my kitties. I have 5 kitties, 3 were tested positive for FIV in 2013. I started the 3 kitties on a full course of LTCI. I do run test on them every 6 months. The last FIV test i did was in September 2014. The results revealed that only 2 of my kitties have FIV. I ask my vet and email the manufacturers of LTCI and they confirmed that there have been reported FIV reversal, but rare. LTCI us not a curing drug but a immune booster. According to the doctor, my kitties are healthy.

        I am also applying essential oils on my kitties but cautiously. I have spoken to a vet in the States and she advocates natural healing by using essential oils on animals. It could be the combination of the Essential oil and LTCI that is helping my kitties, who is to say.

        Anyway, you are most welcome to email me should you have any further queries as i sometimes, do not monitor this site.

        warm wishes

  35. Hi,

    I have 5 cats and one of them has been diagnosed with FIV+. Can the FIV+ cat live together with the non FIV cats. Please advice

  36. James

    thanks for all the info, I hope you will be able to provide regular updates on the status of Emmit and his treatment. I hope this works for the little guy. Sending you both my best

  37. Ingrid: I gave Mr.Smith his third injection of TCYTE and he seems to be responding as well as i had hoped. I thought to mention that more information can be found at, as well as ordering information. TCYTE is very cost effective, and has virtually no side effects! The entire first
    round of treatment is about $400, keeping in mind that your VET may mark it up (As Ours Did).

    It comes in a “Cold Box” and must be refrigerated. You can have your VET do the injections, (If your lucky) but in Mr. EMMITT SMITH’S case- I do them. It comes in two parts, Part one is a sealed vial of powder and the second is a vial of Solution. I withdraw the clear Solution into the ceringe and inject it into the second vial of powder. It must be hand shaken for about two minutes, and withdrawn
    into the needle, I then inject under the skin between Mr. Smith’s Shoulders (behind his neck).

    Giving your loved one’s shots is not for everyone, so if your scared of needles- it’s probably better left to the VET! It’s about 1ml of TCYTE. Be sure your ready, because after the two parts mix, it MUST BE USED with in four hours or thrown away.

    I notice that Mr. SMITH likes to take a nap after his shot. HE wakes up hungry and happy! I hope that this helps someone with getting to know this wonderful and life saving drug. Keep in mind, this does not cure FIP, but with a lot of luck-FIP goes into remission.

    James and Emmitt

  38. Goodday To All:

    Our 11 year old male cat “Emmitt Smith”was found to have FIP (DRY FORM) about three weeks ago after his right eye became inflamed and very Red! There had been nothing visible in the Eye the day prior-that in it’s self was shocking. We had never even heard of FIP. The worst part is that our VET of 10 yrs had only Prednisone to give him, to slow the FIP! She gave him a month of so, that was very shocking to us! We were not onboard with that PLAN! After much searching on the net and speaking to a very famous genetic Professor working on FIP research- We were directed to a vet who had used TCYTE to save cats with Dry Form FIP. We have already starting giving Emmitt the TCYTE and as of this morning, he has shown GREAT improvement! Emmitt gets his third dose tomorrow. We are Very, Very lucky to have found this vet!! Emmitt would already be dead if not for his help. The most shocking part of this story is NOT FIP, It is the Reaction of our regular vet! She not only was angry that we had chosen to go this route, but refused to prescribe the two secondary antibiotics we required to use with the TCYTE! So, weather we are able get the FIP in remission or not, TCYTE has already been a life saving drug for Emmitt!! We know that others have run into this same closed small minded reaction from their VET’s as well. SO, beware that if you decide to use TCYTE your going to be fighting two diseases, the first is FIP and the second is your vets Arrogance and ignorance to TCYTE.

    James and EMMITT

    • That’s the first time I’ve heard of TCyte being used for FIP – thanks for sharing your experience, James. Thankfully, not all vets are as close-minded as yours appears to be. Patient advocacy is as important in veterinary medicine as it is in human medicine. Please keep us updated on Emmmit’s progress!

    • James & EMMITT

      Congrats on your FIP progress so far! Our neighbor has been taking FIP cats in when vets sentence them to be euthanized and has over a 50% recovery rate! We will be looking into TCyte right away too! You may look into using Tamaflu use for Emmitt as we’ve used with success (sounds strange I know but it has worked). I hope you get the other 2 antibiotics for his recovery as well. The vet reactions are due to it’s high contagion factor and can wipe out an entire group of cats with death sentence. Once the cat is cured, it will not get or give it again, so quarantine is MANADATORY for success, as well as not infecting other cats at the vet or neighbors. Happy Emmitt is a fighter and having a chance!

    • Why on Earth would your Vet not want to order you the TCYTE? My Vet doesn’t believe it will work but not only did he order it for me, he didn’t even mark up the price. He used my credit card so I know exactly how much it cost straight from the manufacturer. I am treating my 8 month old female kitten who has always been sick with either a cold, puking, and finally a bad skin infection which prompted my new Vet to retest for FeLV and sure enough she had it. I researched FeLV intensively to say the least for several weeks and there are ways to turn a cat who is at the brink of death back to being healthy again. I am using several medications to fight the FeLV including TCYTE (1st shot 6 days ago 2nd shot tomorrow) and lets just say she is doing better than the Vet had ever imagined. I will keep praying that she stays healthy.

      • I’m interested to know as well-my cat was also puking then he puked up a round worm-treated it with excel and the next day he was good as new-and yes he was treated for worms by the vet 3 weeks earlier. He still has swollen glands and I want them to go down before I get him fixed. would love to know how tcyte worked and what your price was for it. I have a call into them now but doubt they’ll tell me. anything will be appreciated

  39. Scott, is your outside cat FIV or FELV? If it’s FIV you can still bring him into your home, just give a careful introduction (seperate for 2 weeks, swap rooms to let them all adjust to smell, short visits increasing in time) I brough home a FIV cat a few years ago with all negative cats in the home and we’ve never had an issue. There’s a lot of myths surrounding FIV+ cats living with negative cats. Of course if yours is FELV that’s a different story.

  40. Would like to take part in any treats if possible. We just adopted an outdoor cat and can’t bring it into our home to meet our other two unless we get this cleared up. Can we apply to be a trial? Scottconsoliebay@gmail com

  41. I currently have 3 FLV+ cats and have been caring for them for 6 years… I adopted the stray, pregnant momma-to-be, and 2 weeks later, she gave birth to 5 kittens, only to find out at the first vet check that they were all FLV+. Amazingly, the kittens lived, but we lost the 2 hearty boys around 1 year old and our little special needs runt at 3 years old. Because the little one face numerous issues, I gave her and her sibs Transfer Factor, to help build their immune systems. I’m not certain, but think it extended their lives. My vet is amazed that the kittens survived and that we still have the momma and 2 of her girls. Currently, all 3 are healthy in appearance, although I know it can change in an instant. I will definitely talk with my vet about T-Cyte, to see if it would be worthwhile using it now or in the future. Thank you for sharing this new hopeful treatment.

    • That’s wonderful that all three of your cats are doing so well, Kathleen. I’d love to hear from you again if you decide to use T-Cyte.

  42. I had not heard of this, so thank you so much for sharing!! I was wondering too if it might help those kitties battling FIP – and look there was Lynn’s comment. I pray this continues to do what it is designed to do and is able to help so many kitties.

  43. A veterinarian exhibiting his products at Global Pet Expo in 2011 told me about this drug. He also said it has shown promise in battling the nebulous FIP, which actually intrigued me more, since I had just a couple of weeks prior to then lost a cat to FIP. It hadn’t been tested or approved for that, but he and some other vets he knew had been successfully using it and keeping cats alive who would otherwise have been dead from FIP. Here’s hoping it’s that miracle cure we’ve all been waiting for!

    • THANK YOU for this information! As I was reading the article, I immediately wondered if there would be a treatment for FIP. I will take this info to my Vet and discuss with her. I provide refuge in my home for “unadoptable” cats and this information could be a God-send. Thank you again.

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