Petco Text Logo
Petco Pet Logo

Can I give my cat human L-lysine pills? What's the right dosage?

Updated On September 23rd, 2025

Pet's info: Cat | Persian | Female | unspayed | 3 years and 10 months old | 8 lbs

Can I use human l-lysine pills for cats? How much is the dosage for every kg? Thanks

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on March 1st, 2017

Yes you can use human grade lysine for cats, but getting a cat specific one is easier in terms of getting Nabat to take them because they are flavored. If you use a human grade one, you can cut a 500mg pill in half and mix it in with her food twice a day. For the cat ones, Enisyl and Viralys are both good brands, and can be purchased over the counter without a prescription - just follow the dosing instructions on the label based on your cat's weight.

Vote icon

16Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored