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Felisyl Immune System Support (60 Soft Chews)

Item# 5939
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10% OFF! This item qualifies for an instant discount when added to cart. Can't be combined with other promotions.


Felisyl L-Lysine for Cats Immune System Support Soft Chews are a specially formulated dietary supplement designed to boost the immune system of your feline companion. These soft chews contain essential L-Lysine, an amino acid that plays a crucial role in supporting your cat's immune response.

Key Benefits:

  1. Immune System Support: L-Lysine is known for its immune-boosting properties, helping to strengthen your cat's natural defense mechanisms against common illnesses and infections.
  2. Respiratory Health: Felisyl L-Lysine helps maintain respiratory health in cats by reducing the severity and duration of respiratory symptoms associated with viral infections, such as sneezing, coughing, and congestion.
  3. Stress Relief: These soft chews can also help alleviate stress-related issues in cats, as stress can weaken the immune system. By providing L-Lysine supplementation, Felisyl promotes a healthier response to stress, ensuring your cat remains resilient and less susceptible to illnesses.
  4. Tasty and Convenient: The soft chews are not only beneficial but also palatable, making them easy to administer. Cats will enjoy the delicious taste, making it hassle-free to incorporate this supplement into their daily routine.
  5. Trusted Quality: Felisyl L-Lysine soft chews are formulated by veterinarians and made with high-quality ingredients, ensuring the safety and effectiveness of the product. They are a reliable choice to support your cat's immune system and overall well-being.

Give your feline friend the immune system support they need with Felisyl L-Lysine for Cats Immune System Support Soft Chews, providing a convenient and tasty solution to boost their health and vitality.

Immune Support for Cats

Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active.


L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health.

Pet Health Supplement

A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health.


Guaranteed Analysis per Chew (1.5g):
Moisture (max) 18.6%
L-Lysine 250 mg


l-lysine, natural chicken liver flavor, oat flour, rye four, soy lecithin, brewers dried yeast, water, arabic gum, glycerin, canola oil, maltodextrin, sodium alginate, calcium sulfate, citrus pectin, oat meal, sorbic acid (a preservative), propionic acid (a preservative), mixed tocopherols (a preservative).


Give 1-2 chews daily


For animal use only.

Store in a cool dry place.

Keep out of reach of children and animals. Your pet may consider this a treat. In case of accidental overdose, contact a healthcare professional immediately.


Review Summary
1 Reviews
100% (1)
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100% Recommend this product (1 of 1 responses)
By Robin
lysine chews
July 17, 2023
I have one cat that eats these, the other two won't. It's one of the few lysine products I've found that isn't fish flavored. They're not super soft, but definitely not crunchy. I break them in half for my cat because he has kind of a hard time eating a whole one.

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