Bundle: Vetoquinol Viralys (L-Lysine) Oral Gel for Cats, 5-oz & Vetoquinol Enisyl-F Lysine Bites Chicken Liver Flavored Cat Treats, 6.35-oz bag

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About This Item

Details

  • A highly palatable L-Lysine HCI Nutritional supplement for cats that may be given orally twice a day
  • This L-Lysine supplement is specifically developed for cats and kittens in mind
  • Made in the USA.
  • Comes in a highly palatable poultry flavor, and may also be used as directed for as long as needed.
Learn More About Vetoquinol From Our Team of Experts

Vetoquinol Viralys

Viralys L-Lysine Supplement for Cats

Support your cat’s immune system with Viralys L-lysine supplement! The key ingredient, lysine, supports normal eye health, respiratory health, and helps your cat maintain a strong immune system

Viralys can help cats manage conditions responsive to lysine, including:

• Squinting, watery, red, and/or itchy eyes

• Sneezing

• Runny nose

• Congestion

For Cats and Kittens          

Viralys can be given to cats and kittens of any age to support a healthy immune system.

Maintain Eye Health Support

L-lysine helps support normal eye function and health in cats and kittens.

Respiratory Health

Viralys is formulated to support respiratory health in cats and kittens.

Easy to Give

Even picky cats love the tasty maple-flavored oral gel or fish and poultry-flavored powder!

Satisfaction Guarantee

The makers of Vetoquinol are so sure your pet will like their products that they come with a 100% satisfaction guarantee.

Also Try Enisyl-F!

From Vetoquinol, Enisyl-F L-lysine supplement helps support immune health in cats and kittens of all ages.

Cats love the tasty chicken liver flavor of the easy-to-give bites or the tuna-flavored oral paste - giving you more options for high-quality immune support.

About Vetoquinol

Vetoquinol believes that a healthy pet is a happy pet. That’s why they are committed to creating uniquely formulated products that are easy to administer and designed to foster good health at every life stage. Since 1933, this independent family business has been on a mission dedicated exclusively to animal health. Their goal every day is to enrich the lives of pet parents by helping their pets be well and thrive!

Shop Vetoquinol

Questions & Answers

4 Customer Questions

Are the treats crunchy or chewy?

Answer by Chewy • Mar 23, 2021
These treats have a crunchy texture.

What is the caloric info for each product?

Answer by Chewy • Oct 10, 2024
The Viralys Gel has about 4 cal per serving and the Enisyl-F bites have about 7 cal per bite.

Where is the L-Lysine sourced?

Answer by Chewy • Apr 12, 2021
The L-lysine is manufactured in Princeville, Canada.

How many treats are estimated to be in a bag?

Answer by Chewy • Dec 19, 2020
The quantity of treats will vary due to this product being based on weight.
Reviews
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3.7
Rated 3.7 out of 5 stars
27 Ratings
Terms & Conditions

20 Customer Reviews

Rated 4 out of 5 stars
By Micaela on May 3, 2025

Recommend

Pets are them. I was pleased as they had respiratory issues. They would not touch the maple flavored gel. Smells disgusting.

Pets are them. I was pleased as they had respiratory issues. They would not touch the maple flavored gel. Smells disgusting.

Rated 4 out of 5 stars
By Dennis on Sep 23, 2025

good item

good item taste

good item taste

Rated 1 out of 5 stars
By Rebecca on May 27, 2024

Inedible and rock hard

The Lysine “chews” we rock hard my cat couldn’t bit them. I actually tried to cut them in have with a a knife and it was almost impossible. Also, my cat hated the

The Lysine “chews” we rock hard my cat couldn’t bit them. I actually tried to cut them in have with a a knife and it was almost impossible. Also, my cat hated the maple flavored gel also

Rated 5 out of 5 stars
By Ann on Jul 2, 2024

It appears to be helping my cat. She isn't as congested

It appears to be helping my cat. She isn't as congested

Rated 1 out of 5 stars
By Debbie1 on May 4, 2023

Lysine

I have 3 kittens that I bought the lysine bites for that my vet recommended them to eat. Only one of them will eat the bites and none of them will eat the gel. I

I have 3 kittens that I bought the lysine bites for that my vet recommended them to eat. Only one of them will eat the bites and none of them will eat the gel. I purchased some from another pet store and they all will eat them. One of them has been having eye issues and the vet recommended they eat the lysine treats. Unfortunately, the cat that has the eye issue won’t eat those treats.

Rated 5 out of 5 stars
By Leon on May 28, 2023

Pet care made easy

It took me awhile to find the best solution but in the end it was worth it. I would like to thank you again for your help with my order. I will be ordering in the

It took me awhile to find the best solution but in the end it was worth it. I would like to thank you again for your help with my order. I will be ordering in the future but a bigger size.

Rated 5 out of 5 stars
By Ruby1 on Jun 14, 2023

gel works fine

So, I take the gel and use a 3cc syringe to dose my cats. No issues with this method. Easy & quick. Medicating cats can be difficult, but it’s an important skill

So, I take the gel and use a 3cc syringe to dose my cats. No issues with this method. Easy & quick. Medicating cats can be difficult, but it’s an important skill set to learn if/ when you will ever need to treat a sick/ injured feline.

Rated 2 out of 5 stars
By Bill on Jan 24, 2023

Waste of Money

Our cat ate one of the chews. Would not go near them after that. Eats all other kinds of treats. Took one lick of the gel and would not try it again. Complete

Our cat ate one of the chews. Would not go near them after that. Eats all other kinds of treats. Took one lick of the gel and would not try it again. Complete waste of a lot of money.

Rated 3 out of 5 stars
By Iris on Dec 1, 2022

good and bad

I was surprised my cat liked the maple flavor, but he really does! No forcing necessary; he licks it off my finger. But the treats were a no-go, nothing doing.

I was surprised my cat liked the maple flavor, but he really does! No forcing necessary; he licks it off my finger. But the treats were a no-go, nothing doing.

Rated 2 out of 5 stars
By JennyB on Sep 22, 2022

Not woth it

The treats are so hard my cats can't eat them. I have to chop them up and sprinkle on their food. The paste is useless. None of my cats will eat it. I even put it

The treats are so hard my cats can't eat them. I have to chop them up and sprinkle on their food. The paste is useless. None of my cats will eat it. I even put it on their feet, still wouldn't eat it so I had sticky paste smeared on everything. Hopefully I can find someone who can use it so I don't feel like I've completely wasted my money.