--- 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: "1914137β‚«" currency: VND in_stock: true category: "Vetoquinol" url: https://www.desertcart.vn/products/899953-vetoquinol-viralys-lysine-supplement-for-cats-and-kittens-supports-eye store_origin: VN region: Vietnam --- # Fish & Poultry natural flavor 500mg L-Lysine per dose Vet-recommended immune support 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:** 1914137β‚« **Availability:** βœ… In Stock ## Summary > 🐾 Keep your cat thriving with Viralys β€” the daily lysine boost they actually crave! ## 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?** 1914137β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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 - β€’ **Multi-Age Support:** Perfectly suited for cats and kittens of all ages to boost immunity and reduce viral symptoms. - β€’ **Veterinarian Trusted:** Backed by vets for safe, reliable support of immune, eye, and respiratory health. - β€’ **Palatable Fish Flavor:** Specially formulated fish and poultry flavor ensures easy mixing with wet food for picky cats. - β€’ **Cost-Effective Wellness:** Long-lasting 100gm jar with included scooper offers an affordable daily supplement solution. - β€’ **Clinically Effective Dosage:** Delivers 500mg L-Lysine twice daily to manage flare-ups and maintain feline health. ## Overview Vetoquinol Viralys Daily L-Lysine Powder is a vet-recommended, fish-flavored supplement delivering 500mg of L-Lysine per dose to support immune, eye, and respiratory health in cats and kittens. Designed for easy mixing with wet food, it helps manage feline herpes flare-ups and promotes long-term wellness, making it a trusted, cost-effective choice for proactive cat care. ## 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 | #1,767 in Pet Supplies ( See Top 100 in Pet Supplies ) #3 in Cat Multivitamins | | Brand | Vetoquinol | | Brand Name | Vetoquinol | | Customer Reviews | 4.6 out of 5 stars 9,543 Reviews | | Flavor | Fish & Poultry | | Global Trade Identification Number | 00030521041480 | | Included Components | Vetoquinol Viralys Powder, 100gm | | Item Form | Powder | | Item Weight | 0.01 Ounces | | Manufacturer | Vetoquinol | | Manufacturer Part Number | 410633 | | Model Number | 410633 | | Number of Items | 1 | | Product Benefits | Immune Support | | Specific Uses For Product | Eyes, Sneezing | | Target Species | Cat | | UPC | 030521041480 884291149927 | | Unit Count | 2.5 Ounce | | Volume | 3.5 Fluid Ounces | ## Product Details - **Brand:** Vetoquinol - **Flavor:** Fish & Poultry - **Item Form:** Powder - **Item Weight:** 0.01 Ounces ## 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/71IiAj4UUCL.jpg) ## 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. ## 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 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/899953-vetoquinol-viralys-lysine-supplement-for-cats-and-kittens-supports-eye](https://www.desertcart.vn/products/899953-vetoquinol-viralys-lysine-supplement-for-cats-and-kittens-supports-eye) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-06-04*