Can I Give My Cat Viralys?

Yes, with care
L-lysine is commonly referenced for cats at published doses. Published guidance for cats: 250-500 mg per cat, every 12h. Traditionally used for feline herpesvirus flare-ups; evidence is mixed, recent studies question benefit. Safe, but manage expectations.
Source: Veterinary Partner (VIN)
Get the exact range for your cat's weight

The safe habit

Confirm any medication decision with your veterinarian, who knows your cat's health history and other medications. VetDose shows published reference data, not prescriptions.