FELISYL Chicken Flavored Soft Chew Immune Supplement for Cats, 60 count - Chewy.com

Felisyl Chicken Flavored Soft Chew Immune Supplement for Cats, 60 count

By Felisyl
Rated 4 out of 5 stars
$17.99Chewy Price
$17.09Autoship Price
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About This Item


  • Supplies L-Lysine to help support immune health and antibody production in compromised cats.
  • For use in cats and kittens with conditions responsive to L-Lysine.
  • Helps support respiratory, tissue, and eye health in cats.
  • Easy-to-administer soft chews taste like chicken liver.
  • Each package comes with 60 chews.

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Nutritional Information

Feeding Instructions


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ReviewsWrite a Review

Rated 4 out of 5 stars
6 Reviews
Would recommend to a friend

6 Customer Reviews

Rated 3 out of 5 stars
By BostonGal67 on Sep 14, 2022

Not soft chews

The product universally liked by my cats, made by 21st century/essential pet appears to have been discontinued. I decided to try these instead. They are not soft and chewy. My cats are eating them, but I am not too sure how well they work.

Rated 1 out of 5 stars
By Katy on Feb 13, 2022

Hard not soft

I bought this for one of my cats at the recommendation of my vet. They are not chewy at all - they are very hard. I have 5 cats and offered them each a treat. No one will eat them. I tried breaking one up and putting it in their other dry food, and they eat around it. Terrible.

Rated 5 out of 5 stars
By Jessie on Jan 28, 2022

Definitely worth it

I was worried that my cats wouldn't like the flavor of these. On the contrary-I have to hide the bag! They're all over me as soon as they see it, and it's definitely made a difference because they're not sneezy within 24 hours of eating one!

Rated 5 out of 5 stars
By Beee on Aug 21, 2021

Cats love them

Much better received than other lysine treats. Girl cat even asks for them!

Rated 5 out of 5 stars
By JMH8 on Jul 4, 2021

Great for allergies!

My cats seem to feel better on this supplement and there has been an improvement with their allergies!

Rated 5 out of 5 stars
By Lysine on Jun 20, 2020

Healthy cats

My cats seem to feel Better and want to play more since they have been taking this supplement. I break one in half and give to my two cats twice a day. They seem to do better with a smaller pill so splitting one does the trick.