Price: $20.29
(as of Nov 07, 2025 08:13:37 UTC – Details)
Support your cat’s health with Lysine Immunity Health (new name, same great Vetri Lysine Plus formula), a vet-formulated cat lysine supplement designed to promote optimal immune function, respiratory health, and overall well-being. These delicious cat lysine chews combine 250 mg of L-lysine with DMG, two powerful amino acids that support antibody and collagen production, tissue repair, and healthy healing. Lysine supplements for cats also support proper calcium absorption to promote strong bones and healthy aging. Ideal for helping to manage cat allergy symptoms and respiratory discomfort, including sneezing, watery eyes, and nasal discharge, this lysine supplement for cats is easy to give daily or as-needed. The hydrolyzed chicken liver flavor is perfect even for cats with protein sensitivities – it’s a taste that cats love! Whether used as part of a routine wellness plan or during periods of respiratory discomfort, lysine chews for cats can help maintain eye, nose, and lung health. Suitable for daily use in cats of all ages, from kittens to seniors, and for all breeds and sizes, Lysine Immunity Health helps build a strong immune response while promoting normal and comfortable respiratory function. Our dog and cat supplements are certified by the National Animal Supplement Council (NASC), routinely undergo third-party testing, and contain no hidden ingredients, artificial flavors, synthetic colors or preservatives.
Is Discontinued By Manufacturer : No
Product Dimensions : 11.5 x 5.25 x 8.63 inches; 4.8 ounces
Item model number : 0940743.120
Department : Vitamins & Supplements
Date First Available : July 15, 2004
Manufacturer : FoodScience, LLC
ASIN : B002ALE9RM
Best Sellers Rank: #2,689 in Pet Supplies (See Top 100 in Pet Supplies) #16 in Cat Supplements & Vitamins
Customer Reviews: 4.0 4.0 out of 5 stars 12,257 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Lysine Plus for Cats: New look, new name, same great VetriScience Vetri Lysine Plus formula that’s trusted by thousands of veterinarians, rescues, and pet parents nationwide
Cat Lysine Chews: Lysine Immunity Health chews for cats are formulated with 250 mg of high-quality l-lysine to support immune health and function, antibody and collagen production, tissue repair, healthy antioxidant levels, and more
Use Daily or As Needed: Vet-formulated cat l-lysine supplement helps to protect immune and respiratory health daily, or during periods of discomfort including sneezing, coughing, congestion, runny nose, and watery or squinty eyes
For Cats and Kittens of All Sizes: Lysine Immunity Health chews are recommended for all kittens and adult and senior cats of all breeds and sizes to naturally support immunity with science-backed ingredients like l-lysine and DMG
Taste-Tested and Cat Approved: Delicious soft chews are flavored with natural chicken flavor and palatability tested to guarantee that cats will love the taste
Customers say
Customers report that the supplement helps control herpes symptoms and improves their cats’ health, with one noting it cured a UTI. The product receives positive feedback for its quality and effectiveness, and customers like its taste. Customers disagree on the chewability and softness of the treats, with some finding them too hard to eat. Opinions on value are divided between those who find it a great value and those who consider it an expensive waste. While some customers report reduced sneezing, others mention their cats vomited after using it.