We use this at the shelter to give a boost to our cats that are battling upper respiratory infections. Very helpful.

Pros: helps boost sick cats

Cons: none

We began using Viralys after it was recommended to us for a couple of cats we had in our shelter with active herpes infections. We began using it on all of our cats to help build their immunity. Most of our cats come in under a great deal of stress which lowers immunity to URI. All of our cats get the Viralys mixed in with their daily canned food. This seems to have been effective in reducing the outbreaks of URI in our facility.

Pros: reduces the occurance of URI, easy to dispense

Cons: none

Since we began using this at the shelter (at the suggestion of a vet) we seem to have lad less trouble with upper respiratory & other illnesses. Or if we get a case of upper resp. the cats seem to recover faster.

Pros: seems to have helped with Upper respiratory stuff

Cons: I think it smells bad

any way you can provide your cat with Lysine is a plus in my book

Pros: lysine

Cons: sticky

this l-lysine supplement definitely makes a difference when it comes to boosting cats' immunity. i used this recently with one of my foster cats and I believe it helped her to fight off infection. great for controlling herpes virus outbreaks. cats don't mind the taste. just mix it in with canned food and they gobble it up.

Pros: palatable, boosts immunity

Cons: none