Vetoquinol

Vetoquinol Viralys Daily L-Lysine Gel for Cats and Kittens Maple Flavored Lysine Supplement for Cats and Kittens to

1797+ bought in the past month

$23.39$25.66

About this item

  • Daily L-Lysine Supplement - Viralys Lysine for cats helps support a strong immune system and can help support eye and respiratory health in cats and kittens of all ages
  • Supports Feline Health Issues - Vetoquinol Lysine for Cats can help manage common feline health issues and provides support to help a cat's immune system, ocular health, and respiratory health
  • L-Lysine for Cats - Viralys L-Lysine for cats and kittens provides specially formulated immune support for as long as needed to help manage conditions responsive to lysine
  • Vet Recommended - Trusted by veterinarians, Viralys L-Lysine Gel provides a safe and reliable solution for supporting your cat's immune and respiratory systems.
  • 500mg of Lysine - Viralys Gel delivers the veterinarian-recommended amount of lysine for cats at 500mg 2x daily, and kittens at 250mg
$23.39
Was $25.66Save $2.27

In Stock

DeliveryFriday 10 Apr – 16 Apr
Easy Returns · 30-day window
This order is a gift

In Stock

Secure Checkout
Free Returns
30-Day Guarantee
Secure checkoutAll transactions are SSL-encrypted. Your payment info is never stored.
Free returnsReturn or replace within 30 days
Fast deliveryOrders ship within 1 business day and arrive in 4–8 days.
Buyer protectionIf your order arrives damaged or doesn't show up, we'll make it right.
24/7 supportOur team is here to help. Reach us anytime by email or chat.
Ships fromOur Warehouse
Sold byPattern.
Returns
Easy Returns30-day return window
PaymentsSecure transaction

Product details

BrandVetoquinol
FlavorMaple
Item FormGel
Active IngredientsPurified Water, L-Lysine Hcl, Sodium Carboxymethylcellulose, Potassium Sorbate, Sodium Benzoate, Artificial Sweetener, Maple Flavor, Citric Acid and Riboflavin 5 - Phosphate Sodium See more
Item Weight0.35 Pounds

Technical specifications

item_weight0.35 Pounds
manufacturerVétoquinol USA
item_model_number410632
date_first_availableMay 25, 2006
item_package_dimensions_l_x_w_x_h7.56 x 2.44 x 1.5 inches
item_dimensions_lxwxh7 x 1 x 1.5 inches
brand_nameVetoquinol
target_audience_keywordhouse-cats
directionsEach 1.25 mL (½ teaspoon) contains approximately 500 mg of L-Lysine in a palatable base. The suggested dose for cats over 6 months of age is 2.7 g (½ teaspoon) given orally twice daily. The suggested dose for kittens under 6 months of age is 1.35 g (¼ teaspoon) given orally twice daily. Adjust dosage as recommended by your veterinarian. Place a small amount on cat's nose to stimulate taste interest. Once initial interest has been established, a syringe or teaspoon may be used.
model_nameViralys Oral
colorBasic Pack
size5 oz
age_range_descriptionAll Life Stages
number_of_items1
breed_recommendationAll Breed Sizes
included_components5oz Tube
specific_uses_for_productEyes, Sneezing
is_discontinued_by_manufacturerNo
product_dimensions7 x 1 x 1.5 inches; 5.63 ounces
best_sellers_rank#1,724 in Pet Supplies ( See Top 100 in Pet Supplies ) #6 in Cat Multivitamins

From the brand

Product detailProduct detail
Product detailProduct detailProduct detailProduct detailProduct detailProduct detailProduct detailProduct detailProduct detailProduct detail

Product videos

Product video 1

Customer reviews

4.411,387 ratings

Customers say

Customers find the lysine gel effective for their cats, particularly noting it helps with upper respiratory conditions and runny noses.

★★★★★

A good supplement!!

Shreya JayJanuary 5, 2026✓ Verified purchase

I have used multiple tubes for my cat upon my vets recommendation since he was a kitten and now he is five so I can safely say this helps to keep his coat smooth and shiny and also helps with his overall health, energy levels and gut health I feel. He takes this easily there are no offensive smells attached to it. Check with your VET before you start. Read more

★★★★★

Works soooooo well!

Meredith JacobsFebruary 1, 2026✓ Verified purchase

Works soooooo well! Especially helpful for feral cats you can't just pick up and take to the vets. 100% More energy and less sneezing, runny eyes or nose. Why maple, but it works. Read more

★★★★★

Lysine for immuno compromised cats!

Sam512February 12, 2026✓ Verified purchase

My vet recommend this product for my Fiv positive cat, to boost his immune system. He lacks it up easily from the top of his wet food. Read more

★★★★☆

Seems to Work

Mark WojcikJanuary 8, 2020✓ Verified purchase

Does this stuff actually work? It seems to. If you have a cat that's sick or seems to have a mild respiratory infection, especially a cold that keeps coming back, this stuff does seem to help them. I've had vets recommend it, and if you have cooperative cats it's not hard to get them to swallow this stuff. (If you train your kitten to let you give it medicine, it'll be cooperative as an adult.) This is maple-flavored, and I don't know why. I've known a lot of cats, and I've never known one that likes maple flavor. I mean, why would they? A lot of hairball gel is maple-flavored nowadays, too. Mysterious, but so it goes. If you put a lump of this on your fingertip and smear it into the cat's mouth, most cats will lick and swallow it. Some may spit it out, in which case you'll have to gently hold the cat's mouth closed for a few moments, but they don't usually *hate* this stuff. All in all, we feel this is worth the money. I can't prove it works, but I'm pretty sure it helps, and it's not hard to use. I've never had a cat show any ill effects from it. I just wish it wasn't maple-flavored. Read more

★★★★★

Good product

Sami KiefferJanuary 8, 2026✓ Verified purchase

Took my cats a little time to get used to. It's maple flavor. It costs more than others. I keep this one and another brand on hand bc my female seems to sneeze a lot. Indoor cat so vet thinks maybe something she picked up from outdoors. She was a shelter cat. Has great health benefits. Good quality. It's cheaper on here than at the vets. Smells like maple syrup. Read more

★★★★★

Boosts immunity, helps pets, great product!

ConnieDecember 13, 2017✓ Verified purchase

Lysine is an immune booster & very helpful for immunocompromised cats & dogs. My vet prescribed lysine for my dog that I measured out & sprinkled on his food. Then my 21 yr old kitty caught a cold while I was sick too & vet prescribed lysine in this gel Viralys form daily for him in his old age to help keep him from getting sick. He lived to be 23! The gel form is much easier to give to cats & they either like the flavor or can’t tell when it’s on their food (I’m not sure which); & can be put directly on the tongue if using a syringe. I just put a 1cc needle-less syringe to the tip of the Viralys tube & draw while squeezing a tiny bit on the tube & no waste/no mess. I just put 0.5cc on top of my kitty’s canned food once a day & the tube lasts quite a long time for 1 cat, so not bad! Sadly, he was my little antique by time he reached his 23rd b-day & departed. I’m now using Viralys to help keep a FeLV very immunosuppressed cat from getting sick (along w/ no exposure to other cats or any sick people & keeping her indoors only) so she can live a happy life as long as possible w/o succumbing to every virus & bug that comes near. It’s a challenge but one of love. So I immediately started her on Viralys in hopes that it might help even in this severe case. For most pets, this is hands down a very good choice!! The verdict is still out in the case of the cat I’m trying to help that has essentially no immunity at all, but it sure won’t hurt her & just might help a little too. I do know it’s a great product from my own past experience & also because it was vet reccommended for my sweet ancient little guy as well as previous knowledge & use of lysine for people & dogs. Read more

★★★★★

Helped my cat

Making Life EasierNovember 3, 2025✓ Verified purchase

My vet recommended this for an outdoor cat that I had brought indoors. I was skeptical but it actually worked to clear up her congestion and watery eyes and she gained weight. I can't say that she really liked it despite the maple flavoring, but the main thing is it worked. Read more

★★★★★

Great product

Erikd123January 31, 2026✓ Verified purchase

Amazing stuff cleared my cats eyes quick, if they wont take it directly try putting on bottom of food works great! Read more

Review image 1
Recently Viewed