Tomlyn L-Lysine Chews Supplement for Cats, 30 count

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About This Item

Details

  • Supports your cat’s immune system, eye health and respiratory health.
  • Paw-some for immune support and other conditions responsive to L-Lysine.
  • Tasty smoky fish flavoring.
  • Bite-sized chews are easy to feed.
  • Just feed one chew per day for paw-some health support.

Ingredient Information

Feeding Instructions

Questions & Answers

8 Customer Questions

Are these chews Ok for a cat with a sensitive stomach.

Answer by BrittneeR • Dec 23, 2025
Anything that is a change to a pet’s diet could cause stomach upset. We recommend gradually introducing the Tomlyn L-Lysine Chews Supplement with just a small amount of the chew, and working up to a full dose.

Which animal is the source for “spray dried liver powder” in the ingredients? (e.g. chicken, pork)

Originally posted and answered on chewy.com
Answer by IyanzaC • May 13, 2022
The liver spray is pork.

Can a 3 month old kitten have one per day?

Originally posted and answered on chewy.com
Answer by Justin • Nov 01, 2019
These chews are OK for cats of all life stages.

How many calories per chew?

Originally posted and answered on chewy.com
Answer by hjavier • Apr 10, 2019
There are approximately 25 to 28 calories per chew.
Reviews
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4.0
Rated 4 out of 5 stars
258 Ratings
Terms & Conditions

206 Customer Reviews

Rated 3 out of 5 stars
By Kari on Jun 6, 2025

Hack to get cat to eat it

Received this today. My cat immediately turned up his nose at it, so I crushed it, and mixed it with some Churu and water. He lapped it up, but some of the Chew

Received this today. My cat immediately turned up his nose at it, so I crushed it, and mixed it with some Churu and water. He lapped it up, but some of the Chew ended up stuck to the bottom of the bowl though he readily ate the remains when it was scraped off and offered to him. So we’re over the first hurdle. Now to see if it helps his chronic URTI.

Rated 1 out of 5 stars
By Josephine on Mar 19, 2024

Cats would not eat them

Unfortunately my cats would not eat these even when crumbled up and put in their food. They tried to bury the bowl.

Unfortunately my cats would not eat these even when crumbled up and put in their food. They tried to bury the bowl.

Rated 1 out of 5 stars
By Kim on Dec 2, 2025
Originally posted on chewy.com

Cats walk away from these

I actually bought this product as my vet recommended Lysine for 2 of my cats. I do have the powder, that I mix on wet food, but thought the treats would be something

I actually bought this product as my vet recommended Lysine for 2 of my cats. I do have the powder, that I mix on wet food, but thought the treats would be something added or when I don't do wet food. They sniff and walk away from these. Will not have anything to do with them. So, maybe the taste or the smell is not pleasing to them. I can't order this again...

Rated 2 out of 5 stars
By Pamela on Dec 19, 2025
Originally posted on chewy.com

Sounded like a good idea

I liked the idea of a lysine soft chew treat, but my picky cat was not very fond of them. I had to slice them very tiny and then he ate a few of them. But usually

I liked the idea of a lysine soft chew treat, but my picky cat was not very fond of them. I had to slice them very tiny and then he ate a few of them. But usually he just left them in the bowl. So disappointing, I thought he would love them. Might just be my cat...

Rated 5 out of 5 stars
By Deb on Jan 3, 2026
Originally posted on chewy.com

No more Weepy eye on the Black cat

I have an occasional black cat that wanders through. He had a very weepy eye and this supplement worked perfectly! No more weepy eye!

I have an occasional black cat that wanders through. He had a very weepy eye and this supplement worked perfectly! No more weepy eye!

Rated 5 out of 5 stars
By Tracy on Sep 29, 2025
Originally posted on chewy.com

Kitties love them - even if it's "medicine"

One of my kitties had cat herpes as a kitten and had quite a bit of goopy eye, and the vet recommended these as a daily supplement. She loves these! When we added

One of my kitties had cat herpes as a kitten and had quite a bit of goopy eye, and the vet recommended these as a daily supplement. She loves these! When we added a new cat to the house, we also gave it to her (because you have to be fair) and she gobbles it up. They both love the flavor. I do break it up into smaller bite-sized pieces as the large piece is probably too large for them to consume in one bite.

Rated 5 out of 5 stars
By Ashley on Sep 28, 2025
Originally posted on chewy.com

Great

Very hard to find Lysine that my cats will actually take. They run to me and beg for these treats, and they significantly help my cats. Didn't realize Chewy had

Very hard to find Lysine that my cats will actually take. They run to me and beg for these treats, and they significantly help my cats. Didn't realize Chewy had them, will be ordering here from now on!

Rated 5 out of 5 stars
By Ashlee on Oct 3, 2025
Originally posted on chewy.com

Feline herpes support

Helps prevent herpes flares in my cat. He thinks they're delicious. Makes a big difference in frequency of goopy eyes and sneezing fits.

Helps prevent herpes flares in my cat. He thinks they're delicious. Makes a big difference in frequency of goopy eyes and sneezing fits.

Rated 5 out of 5 stars
By Deanna on Jan 20, 2026
Originally posted on chewy.com

Immune support soft chews

All six of my cats liked these soft chews!

All six of my cats liked these soft chews!

Rated 4 out of 5 stars
By suzanne on Sep 30, 2025
Originally posted on chewy.com

Immune support

Helping my daughters kitten who has pink eye and upper respiratory issues

Helping my daughters kitten who has pink eye and upper respiratory issues