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Felisyl L-lysine Gel for Cats (5 oz)

Item: FEL6547
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Felisyl® is a gel supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your cat's body needs it, but can't produce it, so this supplement is a perfect choice to provide that necessity.

L-Lysine HCL Immune System Support for Cats gel helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine Gel for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat's vision. The L-Lysine is in a maple flavored gel that your cat will enjoy eating, making it easy to administer on food or right on the cat's paw.

For Use In: Cats

    Key Features:
  • L-lysine 250mg per ¼ teaspoon
  • Palatable Gel
  • For cats with FHV-1 Feline (Feline herpes virus)


Guaranteed Analysis (per ¼ teaspoon):
L-lysine 250 mg

Inactive Ingredients: Artificial Sweetener, Citric Acid, Maple Flavor, Purified Water, Potassium Sorbate, Riboflavin 5'-Phosphate Sodium, Sodium Benzoate and Sodium Carboxymethylcellulose.

Useful Information

    Instructions For Use:
  • Cats over 6 montsh of age: ¼ teaspoon twice a day.
  • Kittens under 6 months of age: ⅛ teaspoon twice a day.
  • Adjust dosage according to veterinarian's recommendations.

CAUTIONS: An examination from a veterinarian is recommended prior to using this product.

WARNINGS: For animal Use Only

Keep Out Of Reach Of Children and Pets

Store At Controlled Room Temperature

Customer Reviews

2 Reviews
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50% (1)
50% Recommend this product (1 of 2 responses)
By MamaRita
Apache Junction Az
April 14, 2018
L lysine for Lucy
Heard about this product from a vet. Decided to order. My little girl was not feeling well. Not eating. Losing weight. Sneezing. Dripping eyes. Dripping nose. She really liked the taste. I give this to her 2 times a day. She is so much better. Thank you for the easy ordering. Plus shipping so quickly.
Merchant Response:Glad to hear your cat is doing better!
ProsWorks quickly.
By Ken
December 2, 2014
Healthy Pets Is a Great company but my cat hates this Gel
I've always bought the other more expensive brand for my big male cat. I thought I'd save a little money and try this generic PHS L-Lysine. I compared the ingredients and they were basically the same except for the order in ingredient list. Same dose of L-lysine. My cat ate the other brand gel voraciously. He smells this one, smells again and won't touch it. This brand is VERY runny and will drip off your finger and make a mess on the floor if you are not careful. I've always before put a small amount on my finger and he cleaned it up. It's not worth the fight wrestling him to try to poke this goo down his throat and having it flipped all over the house. PHS Felisyl L-lysine was not a wise buy for me.. As expensive as pet care products are these days I've wasted $25 on two tubes of this stuff.
ProsCheaper and it ships fast
Conscat will not eat it and Gel consistency is very loose

Customer Q&A

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CALL IN YOUR ORDER 800.889.9475