VetriScience Vetri Lysine Plus Chicken Flavored Soft Chews Immune Supplement for Cats, 180 count

By VetriScience
Rated 3.8947 out of 5 stars
$32.50Chewy Price
$30.88Autoship Price
Autoship (Save an extra 5%)

Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
  • No fees, no commitments - skip, change or cancel anytime.

Save 50% on First Autoship

See Details for instructions to redeem
In Stock
FREE 1-3 day delivery on first-time orders over $35

About This Item


  • Lysine is an essential amino acid for cats that can only be ingested through food or supplements.
  • The paw-fect option for cats who need a boost of immune support, respiratory health support or who have conditions that are responsive to lysine.
  • Supports immune health especially for feline friends who are being boarded or who live in a home with multiple feline friends.
  • Soft chews crafted with a yummy chicken liver flavor.
  • Manufactured in the USA.

See More

Nutritional Information

Feeding Instructions

Play Video: Learn More About VetriScience From Our Team of Experts
Learn More About VetriScience From Our Team of Experts

Frequently Bought Together

Feliway Classic 30 Day Starter Kit Calming Diffuser for Cats
Rated 3.6042 out of 5 stars
$18.91Chewy Price
Total Price: $79.40

Advanced Formula for Immune System Support

Vetri Lysine Plus is a daily supplement that's recommended by veterinarians to support immune, eye and respiratory health and to alleviate symptoms of the feline herpes virus. These bite-sized chews combine the active ingredients L-lysine and DMG in a delicious treat that's safe for cats of all sizes.

Formulated and Approved by Veterinarians

VetriScience uses veterinarian feedback to develop condition-specific products for common pet health issues. Vetri Lysine Plus was designed to support your cat's immune system and normal respiratory function, and to help clear up watery eyes. The active ingredients help the body to repair tissue and produce the antibodies needed to fight infections such as URI.

Powerful Active Ingredients

The secret behind Vetri Lysine Plus is a synergistic blend of two active ingredients that support immune system function. The amino acid L-lysine supports the production of antibodies to help neutralize bacteria and viruses. It also plays a part in collagen formation and tissue repair to promote healthy skin and help heal wounds. DMG is included to strengthen your cat's immunity so she can ward off viruses and illness more easily.

About VetriScience

As the makers of GlycoFlex and an extensive line of pet supplements, VetriScience Laboratories is a leader in the pet health industry. For over 40 years, VetriScience has led the way by providing exceptional and innovative supplements created for the health and well-being of companion animals. They are committed to using only pure and highly researched ingredients to produce quality products that are safe and effective.
Shop VetriScience

Compare Similar Items

Customer Rating
Rated 3.8947 out of 5 stars
Rated 3.8863 out of 5 stars
Rated 3.5714 out of 5 stars
Rated 3.927 out of 5 stars
Rated 3.6024 out of 5 stars
$32.50Chewy Price
$17.34Chewy Price
$17.50Chewy Price
$24.99Chewy Price
$28.99Chewy Price
$30.88Chewy Price
$16.47Chewy Price
$16.63Chewy Price
$23.74Chewy Price
$27.54Chewy Price
Top IngredientsActive Ingredients Per 2 Chews (2.5G): L-Lysine 250 Mg, N, N-Dimethylglycine Hcl (Dmg) 50 Mg...Active Ingredients: L-Lysine, N, N-Dimethylglycine HCl (D mg)....l-lysine, natural chicken liver flavor, oat flour...Dried Brewers Yeast (grain & soy free); Catnip (Leaf); Chicken Liver (hydrolysate); Fish Oil (Salmon); L-Lysine Mono HCl; Mixed Tocopherols or Natural Tocopherols (Natural Preservative); Quercetin Dihydrate; Rosemary Leaf Extract....Arabic Gum, Brewers Yeast, Calcium Propionate...
LifestageAdultKitten, Adult, SeniorKitten, Adult, SeniorKitten, Adult, SeniorKitten, Adult, Senior
Health FeatureImmune Support, Respiratory Care, Skin & Coat HealthImmune SupportImmune SupportEye Care, Immune Support, Respiratory Care, Allergy ReliefEye Care, Immune Support, Respiratory Care
Food FlavorPoultry, ChickenPoultry, Meat, Chicken, LiverFruits & Vegetables, ChickenChicken, TunaPoultry, Meat, Chicken, Liver
Food FormSupplementSupplementSupplementPowderTreats, Supplement
Special DietNo Corn No Wheat No Soy, Non-GMO, Natural

Questions & Answers

6 Customer Questions

How many chews are in each package?
Answer by ChewyJan 13, 2021
Each package contains 180 chews.

How many packs in a multipack and how many chews per pack?
Answer by ChewyJan 21, 2021
There are 3 bags in the multipack, each containing 120 chews.

Who manufacturers and where does product come from?
Answer by ChewyMar 13, 2021
This is manufactured by VetriScience Laboratories. They source their ingredients from all over the world, so the country of origin can vary from batch to batch. Typically, the ingredients used in this formula come from the US, Malaysia, China, Canada, Mexico, India, Italy, France, Japan, and Germany.

Hello, Does this product have the NASC seal?
Answer by ChewyAug 03, 2021
This supplement has the NASC Quality Seal. The NASC created its Quality Seal Program as part of its ongoing effort to improve and standardize the animal health supplement industry. The presence of the NASC Quality Seal on an animal health supplement signifies to consumers that the product comes from a reputable company that has successfully completed an independent quality audit.

ReviewsWrite a Review

Rated 3.8947 out of 5 stars
19 Ratings
Would recommend to a friend

19 Customer Reviews

Rated 5 out of 5 stars
By Susan on Nov 26, 2023


My cat had major eye discharge. Lysine was recommended by my vet. Been using this particular product for a couple weeks and can see major improvement. Really almost helped 100%.

Rated 1 out of 5 stars
By LizW on May 8, 2023

Too hard to chew

These treats were really tough for my cat to eat because it was hard and dry. I had to break it up a bit into for her to eat it. Won’t be getting these again.

Rated 1 out of 5 stars
By Kathy on Nov 16, 2022

Waste of money

Cat refuses to eat them. Even when I try to hide them in something else, she eats around it.

Rated 5 out of 5 stars
By Suzeque on Apr 19, 2022

Shame on me

Been buying these in the 120 (for $15.99) size for eight months now. 15.99÷120=13.325 cents each. Thought I was smart and bought the $30.00 (what I thought was double size) 180 (for $30.00.) I didn't see my error until they were delivered. $30.00÷180=16.66666... cents each. Not so smart now, huh, missy??? My FIV positive cat takes two at about 8:00 every night. I put them in his treat bowl and say "Oreo, eat your medicine" which he does, because he knows that next is treats. He has been an indoor cat since he adopted Sissy and me in Jan. of '19. Don't know if my method would help anyone, but if your cat is food-centric like my Oreo maybe it'll work for you.

Rated 5 out of 5 stars
By ViperwRowdy on Feb 21, 2022

Rescued Ferals Have Congestion!

I have given the supplement to the two cats for about 3 days now chopping it up in a wee bit of canned cat food to entice them to gobble it down. One cat is tiny so I give her one and the other gets 2 so I want to be sure one cat doesn't eat all 3. I can hear the tiny one has much less congestion going on. The tiny feral has decided that being less feral has benefits of being held and petted; while the older one is still less friendly; although I get to see her with less a need to hide.

Rated 1 out of 5 stars
By Katmom on Jan 15, 2022

Kitties don't like these at all

My 3 cats don't like these at all. They are too large for them to eat as treats. I have to break them up into small pieces and mix with their wet food. Even then, they leave the treats uneaten in the bowl. Good idea for a supplement, but not for my gang. Will try a powdered formula next.

Rated 4 out of 5 stars
By mila on Nov 23, 2021

Cat loves them but needs them broken into smaller pieces

My cat loves these, and usually is satisfied by just 2-4 per day. The only thing is they are a little large so i have to break each chew in half.

Rated 5 out of 5 stars
By Patherndon on Sep 8, 2021

My cats love them

It's too soon to know if they are doing good, but all my cats like them. They are chewy, not too soft.

Rated 2 out of 5 stars
By Holly on Sep 7, 2021

my cats won’t eat them

I’m sure the product works well but my 3 cats won’t eat them

Rated 5 out of 5 stars
By WolfsMa on Mar 20, 2021

Cat's eye help

Our ginger boy was "dropped off" near our house in a rural area and suffered from an eye ailment that his Vet says is common in cats who lived in the wild for some time. These lysine treats have helped his eye, it is not tearing nearly as much and the tear is not as irritating.