---
product_id: 899953
title: "Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams"
brand: "vetoquinol"
price: "49432CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Vetoquinol"
url: https://www.desertcart.sn/products/899953-vetoquinol-viralys-lysine-supplement-for-cats-and-kittens-supports-eye
store_origin: SN
region: Senegal
---

# Easy-to-mix flavored oral powder Supports eye health & reduces discharge Boosts immune & respiratory defenses Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams

**Brand:** vetoquinol
**Price:** 49432CFA
**Availability:** ✅ In Stock

## Summary

> 👑 Keep your cats thriving with Viralys — the daily lysine power-up they actually love!

## Quick Answers

- **What is this?** Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams by vetoquinol
- **How much does it cost?** 49432CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/899953-vetoquinol-viralys-lysine-supplement-for-cats-and-kittens-supports-eye)

## Best For

- vetoquinol enthusiasts

## Why This Product

- Trusted vetoquinol brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Daily Defense Boost:** Provides a consistent dose of L-Lysine to strengthen immune response and maintain respiratory health.
- • **Stress-Free Feeding:** Flavor-infused powder blends seamlessly into wet food, ensuring hassle-free administration twice daily.
- • **Vet-Trusted Formula:** Backed by rigorous quality standards and recommended by veterinarians for managing feline herpes flare-ups.
- • **Cost-Effective Wellness:** A practical alternative to expensive medications, helping you save on vet bills while keeping your cats healthy.
- • **Clear Vision, Happy Cats:** Formulated to reduce sticky eye discharge and promote optimal ocular wellness for cats and kittens of all ages.

## Overview

Vetoquinol Viralys is a 100g flavored L-Lysine powder supplement designed for cats and kittens to support eye health, respiratory function, and immune strength. Easy to mix into wet food, it helps prevent and manage feline herpes flare-ups by suppressing arginine, reducing symptoms like eye discharge and respiratory distress. Vet-recommended and highly rated, it offers a cost-effective, stress-free daily wellness boost for your feline companions.

## Description

Buy Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams: L-Lysine - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: GREAT FOR FELINE HERPES! LYSINE SUPRESSES THE AMINO ACID ARGININE, RESPONSIBLE FOR FLARE UPS!!! - I work w/ my local VSA ( voluntary services for animals). I took in a few kittens that's eyes were almost completely shut with crust & their little noses were covered in crust & mucus. A pitiful site :( . I quickly took all 4 to the vet within 24 hrs. WELL, after they said it was "Feline herpes", (an upper respiratory infection that doesn't go away but can be controlled) IT ended up costing me close to $800!! With Vet costs, testing costs, & the "Wonderfully expensive" medication they gave me for Each cat, That helped some but not much!! They had liquid meds, meds that had to be put INTO their eyes like 4xs a day, & some other antibiotics. It was awful , & seriously it didn't help much at all. It lessened it some, but they needed the meds constantly! I looked on the Internet for any info I could find & found out about LYSINE !! I really thought it was a bunch of "bull" but was willing to TRY anything! I 1st bought a paste & a gel- the cats hated it. I then bought this powder. I mixed it into wet food ( not too much or they taste it!) & they ate it! After a week I noticed all their symptoms were really improving! I had STOPPED the Vets meds as the cost was killing me & not really helping them. After a MONTH all the cats were totally better, no crusty gooey eyes, no crusty nose, sneezing, ALL GONE!! I was amazed!! I studied it more, the use of L LYSINE & it's effects. It surpresses what makes the Herpes virus flare up in the system, so taking it on a Dailey basis means you won't get the flare up & the full blown symptoms! It also works in humans as well. I kept the kittens & have given them forms of LYSINE for 2 yrs now & they have NOT had another flare up since! If I stopped it for a few months, I noticed some sneezing & gunk in their eyes in the 1st year & quickly put them back on it! With 5 cats ( I had a 3 yr old when I took these in, she caught feline herpes from them as well!) it's kinda hard to make sure each one gets 250 - 500 mg Ea. When they eat out of each others bowls! So I just put a scoop into 1 3 oz can of wet, feed them 3 cans & it works great. I tried the TREATS, most cats don't care for them, also many brands you have to give each cat like 10 treats 1-2 x a day! Woa! Or another brand the treats were huge! Only 2 a day because they were the size of a golf ball! Lol. So, the cat powdered LYSINE works good, it's flavored mixes well in food & good to start on. I had no luck putting this on DRY food, I have heard many ppl do that but my cats wouldn't eat the food & most just fell to bottom of dish/bowl. I also bought & use HUMAN grade LYSINE 500 mg tablets & crush them up w/ a spoon & mix into wet food. This is VERY cost effective! It taste stronger than this flavored powder, so use a good wet food to mix with & you wont have a problem. My cats got use to it fast. You can also buy LYSINE powder in BULK on here, it's human grade & already finely crushed up. It works GREAT & cost MUCH less. Plus I like that it's "human" grade. I now can skip months at a time with no LYSINE & they still get no flare ups. This LYSINE is a God send! I recommend this powder if starting out, it's flavored and cats will take it well. But cost wise, the pills, tablets, capsule at your store or on here ( cheaper!) are strongest & the best I've found( crush up finely) . bitter, but cats really don't "taste" bitter I've heard. Either WAY or BRAND you choose it will all but cure your cats of the virus, you won't have huge vet bills & expensive meds that are worthless. 5 cats taking LYSINE on & off for 2 yrs and they have NO MORE SYMPTOMS & are very happy healthy spoiled kitty's... So please do yourself, your wallet, & your cats a favor & put them on a LYSINE regimen of 250 mg a day OR - 500 mg 1-2 x's a day for a flare up or to start off with. Once symptoms subside, you can stay with 250 mg a day to keep them away for good! Btw, In order to replicate & cause FLARE UPS , in humans & cats the herpes virus needs "ARGININE" another amino acid such as LYSINE . when LISINE is taken at higher doses, it prevents the amino acid ARGININE from over producing & hence preventing outbreaks of the herpes virus. So just check your pets FOODS, TREATS etc for any ARGININE ( L-ARGININE ) in them as this will ADD to your problem!! There ARE foods with this in the ingredient list I've found, so just FYI to be safe. Hope this helps someone with the problems I went through & learned from along the way!! :) Jenn ~
Review: tl;dr- powder dissolves easily and my fur babies love the flavor - After my one fur baby passed away, her sister was lonely so we decided to get another cat. Well that didn't go well as I was told that the cat had been socialized with humans and other cats... Well that was not true. The new cat was scared of my fur baby and well they both ended up getting stressed to the point that the herpes virus became an upper respiratory infection. -__- I didn't know that was a thing. Well both of them are now doing better and still getting used to each other. BUT they do like this supplement. The powder smells kinda fishy which is off putting for me BUT for them, they LOVE it. Lol I mix it into their wet food and they both gobble up their wet food. So apparently, it just taste good to them. They hated the paste that tastes like maple syrup... It was a struggle to get them to eat it. My fur baby hated the chicken liver flavored treats as well. This is the only one that she likes which is great as she has to eat it twice a day. Trying to force feed the supplement was a pain and added stress to my fur babies. The powder form mixed easily into their wet food and dissolves quickly which is great as my fur baby is a picky picky kitty and will stop eating if she doesn't like the food. -__- The ingredients look great and clean and this supplement is vet recommended which puts my mind at ease. Overall, this worked out the best for me and my fur babies as it made life so much easier for them and for me. Thank goodness!!

## Features

- Targeted Eye Health: Primarily to aid against sticky eye discharge, this lysine supplement is specifically formulated to support healthy ocular function and overall eye wellness for cats and kittens of all ages
- Daily Immune Support: Vetoquinol Viralys is a fish and chicken flavored L-Lysine powder for cats of all ages that supports immune strength and respiratory health for everyday pet wellness
- Respiratory Health Supplement: This powder supplement for kittens and cats offers a daily serving of lysine, helping to support normal respiratory health as part of a regular pet wellness routine
- Easy Feeding Oral Powder: This oral powder supplement provides stress-free administration; for best results, mix this pet wellness supplement into cat food twice a day
- Confidence in Every Product: Made with a commitment to transparency, rigorous review, and dependable standards upheld across every product, we create happier and healthier moments for your pet

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000FULBT4 |
| Active Ingredients | Active ingredients: L-Lysine hydrochloride, 500mg. Inactive ingredients: Brewer’s Dried Yeast, Hydrolyzed Fish (enzymatic), Hydrolyzed Poultry Liver (enzymatic), Mixed Tocopherols (a preservative), Sodium Acid Pyrophosphate, Sodium Sulfate. Active Ingredients Active ingredients: L-Lysine hydrochloride, 500mg. Inactive ingredients: Brewer’s Dried Yeast, Hydrolyzed Fish (enzymatic), Hydrolyzed Poultry Liver (enzymatic), Mixed Tocopherols (a preservative), Sodium Acid Pyrophosphate, Sodium Sulfate. See more |
| Best Sellers Rank | #1,670 in Pet Supplies ( See Top 100 in Pet Supplies ) #4 in Cat Multivitamins |
| Brand | Vetoquinol |
| Brand Name | Vetoquinol |
| Customer Reviews | 4.6 out of 5 stars 9,626 Reviews |
| Flavor | Flavorless |
| Global Trade Identification Number | 00030521041480 |
| Included Components | Vetoquinol Viralys Powder, 100gm |
| Item Form | Powder |
| Item Weight | 0.27 g |
| Manufacturer | Vetoquinol |
| Manufacturer Part Number | 410633 |
| Model Number | 410633 |
| Number of Items | 1 |
| Product Benefits | Immune Support |
| Specific Uses For Product | Active |
| Target Species | Cat |
| UPC | 030521041480 884291149927 |
| Unit Count | 2.5 Ounce |
| Volume | 3.5 fluid ounces |

## Product Details

- **Brand:** Vetoquinol
- **Flavor:** Flavorless
- **Item Form:** Powder
- **Item Weight:** 0.27 g

## Images

![Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams - Image 1](https://m.media-amazon.com/images/I/61l0q+Sk6GL.jpg)
![Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams - Image 2](https://m.media-amazon.com/images/I/61-XvRp-OGL.jpg)
![Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams - Image 3](https://m.media-amazon.com/images/I/613Sda1IAuL.jpg)
![Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams - Image 4](https://m.media-amazon.com/images/I/61VcdfXMJ5L.jpg)
![Vetoquinol Viralys - Lysine Supplement for Cats & Kittens - Supports Eye Wellness, Respiratory Health & Immune Strength - Flavored Oral Powder for Easy Feeding & Daily Use - 100 Grams - Image 5](https://m.media-amazon.com/images/I/61Zedj57nGL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How much lysine in a "scoop" dose? How many doses in a 100 gram jar?**
A: Hi, according to what it says on the jar, "contains approximately 500 mg of L-Lysine Hydrochloride in a palatable base"  I'm not sure about how many doses in a 100 gram jar (it doesn't say on the jar). I only use it occasionally, so it lasts a really long time for me. They suggest one rounded scoop twice daily. I usually just use one scoop at night in their wet food and it seems to work well enough. The scoop is small, I would guess maybe around 1/8 teaspoon? A very good product at any rate and my cats seem to love the taste and will eat it when mixed in with their wet food. Hope this helps.

**Q: What are the ingredients in Vetoquinol Viralys Powder?**
A: I want to let people who are giving this product to their cats, what hydrolyzed food ingredients are.  Hydrolysis is basically chemical digestion.  The protein, in this case fish & liver, is boiled in sulfuric aced for anywhere from several hours to more than a day to break down the proteins.  Then lye is added to raise the ph back to neutral.  Just what I want to give my cats.  Or not!!!  This is the trouble with buying from the internet.  The full label is usually not available & even when it is, the print is usually so tiny, not to mention blurred,  as to be impossible to read.

**Q: What is the shelf life?**
A: If you buy it from us. To_Your_Health, you will be guaranteed to get the freshest products available.  As of today, December 28, 2015, the expiration date on the containers in stock should be December 2017 or better.  Thanks.

**Q: My cat won't eat wet food & only treats that R crunchy on outside & soft inside. Which might be best chance I have ?**
A: The same maker of the this powdered form of L-lysine also makes this supplement is the form of a crunchy treat and a flavored paste (no affiliation). I recommend (as a vet) 500 mg twice daily to begin with, you can titrate up or down to the most effective dose, but always follow the recommendation of your veterinarian. Also note that l-lysine is most effective against the respiratory/ocular symptoms caused by feline herpes virus, a viral (but not venereal) disease most cats have been exposed to and, just like love, herpes virus lasts forever. The amino acid L-lysine is believed to inhibit the recrudescence of the virus during periods of physiologic stress.

## Customer Reviews

### ⭐⭐⭐⭐⭐ GREAT FOR FELINE HERPES! LYSINE SUPRESSES THE AMINO ACID ARGININE, RESPONSIBLE FOR FLARE UPS!!!
*by J***Y on June 27, 2013*

I work w/ my local VSA ( voluntary services for animals). I took in a few kittens that's eyes were almost completely shut with crust & their little noses were covered in crust & mucus. A pitiful site :( . I quickly took all 4 to the vet within 24 hrs. WELL, after they said it was "Feline herpes", (an upper respiratory infection that doesn't go away but can be controlled) IT ended up costing me close to $800!! With Vet costs, testing costs, & the "Wonderfully expensive" medication they gave me for Each cat, That helped some but not much!! They had liquid meds, meds that had to be put INTO their eyes like 4xs a day, & some other antibiotics. It was awful , & seriously it didn't help much at all. It lessened it some, but they needed the meds constantly! I looked on the Internet for any info I could find & found out about LYSINE !! I really thought it was a bunch of "bull" but was willing to TRY anything! I 1st bought a paste & a gel- the cats hated it. I then bought this powder. I mixed it into wet food ( not too much or they taste it!) & they ate it! After a week I noticed all their symptoms were really improving! I had STOPPED the Vets meds as the cost was killing me & not really helping them. After a MONTH all the cats were totally better, no crusty gooey eyes, no crusty nose, sneezing, ALL GONE!! I was amazed!! I studied it more, the use of L LYSINE & it's effects. It surpresses what makes the Herpes virus flare up in the system, so taking it on a Dailey basis means you won't get the flare up & the full blown symptoms! It also works in humans as well. I kept the kittens & have given them forms of LYSINE for 2 yrs now & they have NOT had another flare up since! If I stopped it for a few months, I noticed some sneezing & gunk in their eyes in the 1st year & quickly put them back on it! With 5 cats ( I had a 3 yr old when I took these in, she caught feline herpes from them as well!) it's kinda hard to make sure each one gets 250 - 500 mg Ea. When they eat out of each others bowls! So I just put a scoop into 1 3 oz can of wet, feed them 3 cans & it works great. I tried the TREATS, most cats don't care for them, also many brands you have to give each cat like 10 treats 1-2 x a day! Woa! Or another brand the treats were huge! Only 2 a day because they were the size of a golf ball! Lol. So, the cat powdered LYSINE works good, it's flavored mixes well in food & good to start on. I had no luck putting this on DRY food, I have heard many ppl do that but my cats wouldn't eat the food & most just fell to bottom of dish/bowl. I also bought & use HUMAN grade LYSINE 500 mg tablets & crush them up w/ a spoon & mix into wet food. This is VERY cost effective! It taste stronger than this flavored powder, so use a good wet food to mix with & you wont have a problem. My cats got use to it fast. You can also buy LYSINE powder in BULK on here, it's human grade & already finely crushed up. It works GREAT & cost MUCH less. Plus I like that it's "human" grade. I now can skip months at a time with no LYSINE & they still get no flare ups. This LYSINE is a God send! I recommend this powder if starting out, it's flavored and cats will take it well. But cost wise, the pills, tablets, capsule at your store or on here ( cheaper!) are strongest & the best I've found( crush up finely) . bitter, but cats really don't "taste" bitter I've heard. Either WAY or BRAND you choose it will all but cure your cats of the virus, you won't have huge vet bills & expensive meds that are worthless. 5 cats taking LYSINE on & off for 2 yrs and they have NO MORE SYMPTOMS & are very happy healthy spoiled kitty's... So please do yourself, your wallet, & your cats a favor & put them on a LYSINE regimen of 250 mg a day OR - 500 mg 1-2 x's a day for a flare up or to start off with. Once symptoms subside, you can stay with 250 mg a day to keep them away for good! Btw, In order to replicate & cause FLARE UPS , in humans & cats the herpes virus needs "ARGININE" another amino acid such as LYSINE . when LISINE is taken at higher doses, it prevents the amino acid ARGININE from over producing & hence preventing outbreaks of the herpes virus. So just check your pets FOODS, TREATS etc for any ARGININE ( L-ARGININE ) in them as this will ADD to your problem!! There ARE foods with this in the ingredient list I've found, so just FYI to be safe. Hope this helps someone with the problems I went through & learned from along the way!! :) Jenn ~

### ⭐⭐⭐⭐⭐ tl;dr- powder dissolves easily and my fur babies love the flavor
*by M***O on June 26, 2026*

After my one fur baby passed away, her sister was lonely so we decided to get another cat. Well that didn't go well as I was told that the cat had been socialized with humans and other cats... Well that was not true. The new cat was scared of my fur baby and well they both ended up getting stressed to the point that the herpes virus became an upper respiratory infection. -__- I didn't know that was a thing. Well both of them are now doing better and still getting used to each other. BUT they do like this supplement. The powder smells kinda fishy which is off putting for me BUT for them, they LOVE it. Lol I mix it into their wet food and they both gobble up their wet food. So apparently, it just taste good to them. They hated the paste that tastes like maple syrup... It was a struggle to get them to eat it. My fur baby hated the chicken liver flavored treats as well. This is the only one that she likes which is great as she has to eat it twice a day. Trying to force feed the supplement was a pain and added stress to my fur babies. The powder form mixed easily into their wet food and dissolves quickly which is great as my fur baby is a picky picky kitty and will stop eating if she doesn't like the food. -__- The ingredients look great and clean and this supplement is vet recommended which puts my mind at ease. Overall, this worked out the best for me and my fur babies as it made life so much easier for them and for me. Thank goodness!!

### ⭐⭐⭐⭐⭐ Actually noticeable effect in my cats well being after feeding in her wet food. A must buy!
*by K***R on May 9, 2026*

My cat has feline herpes respiratory virus ( she was a stray I rescued and she’s hade it since she was a kitten) I have really struggled to do what I can to help her feel better, humidifier, eye ointment from the vet, comb her often since breathing is hard with a runny nose she’s not cleaning herself so I’ve gotten her combs but I bought this stuff and I noticed a definite improvement in her HIGHLY RECOMMEND! She seemed happier and more playful. It easily dissolves in the wet catfood ( I don’t recommend for dry but I think you can put in water - I personally wouldn’t recommend dry catfood for a cat with immune issues it’s just not good quality) But this is a good price the scoops last and any thing that helps the cat feels better is worth it for me, I’m going to try it in the paste form next and I’ll update on that! ( she seems to like the taste when it’s in her wet food) If you are not combing your kitty with respiratory issues I highly recommend that as well so the cat feels better. I noticed the older she gets that’s getting harder. And don’t forget to try a humidifier and I even use a gentle fan she seems to enjoy sitting in front of both… anything that helps!

## Frequently Bought Together

- Vetoquinol Viralys Daily L-Lysine Powder for Cats and Kittens, Fish Flavored Lysine Supplement for Cats and Kittens to Support Immune Health, Normal Eye Function and Respiratory Health, 100gm
- Purina Pro Plan Veterinary Supplements FortiFlora Cat Probiotic Supplement for Cats with Diarrhea - 30 ct. Box
- Vetoquinol Viralys Daily L-Lysine Gel for Cats and Kittens, Maple Flavored Lysine Supplement for Cats and Kittens to Support Immune Health, Normal Eye Function and Respiratory Health, 5oz

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-26*