






Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.
๐พ Boost your catโs immunity with a treat theyโll chase!
Vetoquinol Enisyl-F Lysine Bites deliver a veterinarian-recommended daily dose of L-Lysine in a delicious chicken liver-flavored chew. Designed to support catsโ immune, eye, and respiratory health, these portable, easy-to-administer treats help manage common feline issues like sneezing and watery eyes. Suitable for all breeds and life stages, this 6.4oz recloseable bag keeps your catโs wellness routine fresh and hassle-free.












































| ASIN | B004U4P1RY |
| Active Ingredients | Active ingredients per twelve (12) bites: L-lysine Monohydrochloride, 500mg. Inactive ingredients: Chicken Fat (Cooked), Corn Flour, Glycerin, Hydrolyzed Chicken Liver (Enzymatic), Mixed Tocopherols (Natural Preservative), Phosphoric Acid, Potassium Sorbate, Poultry Meal, Rice Flour, Salt, Sugar, Titanium Dioxide, Yeast. Active Ingredients Active ingredients per twelve (12) bites: L-lysine Monohydrochloride, 500mg. Inactive ingredients: Chicken Fat (Cooked), Corn Flour, Glycerin, Hydrolyzed Chicken Liver (Enzymatic), Mixed Tocopherols (Natural Preservative), Phosphoric Acid, Potassium Sorbate, Poultry Meal, Rice Flour, Salt, Sugar, Titanium Dioxide, Yeast. See more |
| Allergen Information | Chicken Meat |
| Best Sellers Rank | #29,278 in Health & Household ( See Top 100 in Health & Household ) #30 in L-Lysine Nutritional Supplements |
| Brand | Vetoquinol |
| Brand Name | Vetoquinol |
| Customer Reviews | 4.1 out of 5 stars 3,243 Reviews |
| Flavor | Chicken Liver |
| Global Trade Identification Number | 00030521057290 |
| Included Components | 1 - 180g Bag |
| Item Form | Chewable |
| Item Type Name | Enisyl-f Lysine Treats for Cats |
| Item Volume | 5 Liters |
| Item Weight | 0.42 Pounds |
| Manufacturer | Vetoquinol |
| Manufacturer Part Number | IMW034039 |
| Model Number | IMW034039 |
| Number of Items | 1 |
| Specific Uses For Product | Eyes, Sneezing |
| Target Species | Cat |
| UPC | 802676659403 017030057294 030521057290 884963006244 |
| Unit Count | 180 Grams |
| Volume | 5 Liters |
| Warranty Description | See Manufacturers Website |
L**.
Healthy chews
Helps maintain my cat's immune system & they must taste good bc he loves eating them
C**R
Cats recommend them 4 - 0
Our vet suggested these for one of our cats. The cat Beau will be on Lysin for the rest of his life and the vet cautioned that they have had issues with some cats taking the Lysin. Well not these Lysin. We have a clowder of cats and in the morning they all line up for these Lysin bites. They love the taste, it does not cause any stomach issues or diarrhea, no stool softness. The treats do not smell or have an after odor. They seem very effective and have maintained our cats energy levels. If you are purchasing a Lysin product I can tell you these are the "treat" of choice for Mimi, Beau, Bobo, and Atticus. They come and remind me it is time for their treat.
K**D
Kittens love them, pricey though
I adopted two kittens from the local shelter, they both love these bits they are a good size and thickness, in addition to the flavor. They do seem to help them I notice less sneezing or other issues. However they tend to get really hard before they can finish a bag and I go through one bag in two weeks giving them to two kittens twice a day they are both over 6 months old I give them 7-8 each twice a day instead of what the bag says of 12 twice a day. Here lately it seems like they donโt really want them because they have become too hard to eat. Value for the money is not as good as Iโd like, they are expensive. I know quality products cost more. Considering that I am feeding two kittens, with taxes it is around $48 a month for two bags for just supplements that help their immune system. I may have to look into another brand as it is a bit costly when you add in what I pay for kitten food, litter and any other extras for two.
F**G
Formula has changed for the worst!!
I have three cats who require lysine. These treats were my go-to until now. They have changed the formula and it is now terrible -- only one of my three cats will touch them now. In the past, the treats have been small, dark brown, uniform in size, and sort of chewy. My cats went crazy for them. But the last package I ordered contained treats that were pale, crumbly, and not uniform in size. They looked old/stale/damaged, so I thought it was a bad batch and returned that package. I purchased another from a different seller and received the same thing -- the second package contained the same pale powdery treats. Looking through the reviews and product questions, it is clear that the company has changed the formula. However, I see some people saying the pale ones are the new formula, and other people saying the dark brown ones are the new formula. For me, the pale ones are new, and they suck -- I want the dark brown ones from the past. I emailed Vetoquinol directly from their website to ask for clarification, but they didn't bother to respond. So on top of my general dissatisfaction, I am also really underwhelmed by their customer service. I'm attaching a picture to show the two versions. On the left is the pale crumbly version that they seem to be selling now; if you squeeze these or try to break them, they just dissolve into powder (and the bag had a good one inch of powder in the bottom). On the right are the smaller dark brown ones that my cats have enjoyed in the past -- you can see in the picture that these can be torn into smaller pieces with no crumbling. Since apparently it isn't possible to get the small dark brown ones anymore, I am forced to find another brand. I find it really disappointing that the company would mess around like this on a product that many of us rely on to keep our cats healthy, and that we pay a premium for ($25+ per bag!). If they had responded to my inquiry, I might feel a little less disgusted, but they didn't, and I see others posting here who tried to get answers but were also ignored. I think that stinks, just like these new treats do. (PS - Both sellers I bought from were fine, no complaints there. This is purely an issue with the manufacturer.) UPDATE: Well it seems they have now settled on a new formula that is totally different from the versions I mention in this review. Now the treats come in new packaging (plastic pouch with a clear front panel), and the treats are dark-ish brown, super dense, and hard as a rock. My cat can't chew them, and I can't break them with my fingers, but I am able to cut them up with a sharp knife. The cat will then eat the small pieces. I don't know what is going on at Vetoquinol, but they sure seem to be going further and further downhill. Unbelievable.
J**Y
Immune support for cats but a little pricey
My cat enjoys these lysine bites and eats them easily. They seem to help with his immune support, though the price is a bit high. Overall, convenient and effective, but wish the bag lasted longer.
J**'
A Good Product But Inconsistent Quality
These are good but first back were soft and the second bag hard and dried out. Iโll prob switch were I order due to this. Luckily my cat will mostly eat the hard ones.
B**H
These really work and could save your cats' lives!!! These work better than the oral gel.
This review is for "Vetoquinol Enisyl-F Lysine Bites: L-Lysine Chews for Cats & Kittens - Chicken Liver-Flavor". Let me start by saying that if your cats / kittens have the herpes virus (aka feline viral rhinotracheitis (FVR)) then these bites can save your cats' lives. I bought these for my sweetheart for the stray cats and kittens that she has hanging around her house that all got really, really sick and were all showing symptoms of FVR. This stuff is like a little miracle in each bite. After giving these bites to the one cat for a day, he didn't have a runny nose anymore. Then after the second day, he could meow again and the crusty stuff on his nose was gone. Then after the third day, the crusty stuff on his eye was going away, and he could open his eye again. By the fifth day, the respiratory problem seemed to be going away, and he could breathe right again. Now I'm not a vet nor is my sweetheart, so we can't say positively that these bites are a cure and didn't just help with the symptoms. BUT, these bites also helped some other cats and some kittens that had the exact same symptoms going on, and they got "better" also and just as quickly. I can't see where that is just a coincidence. We firmly believe that these bites helped save the lives of those cats / kittens. Now anytime the cats get a runny nose or something like that then my sweetheart gives them these bites for a few days and it seems to clear it right up. I had previously purchased the Vetoquinol oral gel for her for the cats and that seemed to work really well. These bites work SOOO much better and the cats seem to love the taste. (The oral gel must not taste as good because the cats didn't want to eat it after a while even though they seemed to love the taste in the beginning.) We highly recommend these bites and will definitely be buying more of these bites instead of the gel. They really work!!!!! Hope this helps and have a great and blessed day! :)
H**Y
Enisyl-Lysine treats
Great product, itโs definitely helping my fur baby!
A**R
Cat goes crazy for these "treats"
Our 10-year-old, male cat absolutely loves these. I gave him one to sample and he tried climbing up my leg to get to the bag in my hand immediately afterwards, this is not something he does. It has only been a few days that he has been taking them now, so not sure of the health benefit effect, very much hoping they help with his upper congestion & sneezing, which doesn't seem to be getting much better no matter what the vet prescribes.
H**I
Meh
Meh
S**D
Can't even cut them with the knife!!!
We have 3 cats in our household and all of them refuse to it these treats. One of my cats tried a piece and immediately spat it out. I totally understood why when I tried to chop one piece with a knife to add it to their wet food.....they are so hard to cut, never mind about chewing these things! Whole package went strait to the garbage!
M**D
Good product. Mostly keeps my little cat's rhinosinusitis at ...
Very satisfactory vendor! Good product. Mostly keeps my little cat's rhinosinusitis at level of no symptoms ...
J**N
Waste of money
Not one of my three cats will touch these.. I have a cat with Feline Herpes virus and I use the same brand lysine paste for her, but she will not touch these
Trustpilot
1 week ago
5 days ago