L-Lysine Paste (cats)

Feline Herpes Virus (FHV-1) :
Up to 97% of cats have serological evidence of exposure to FHV-1, which is the cause of the most widespread respiratory infection in cats, Feline Viral Rhinotracheitis (FVR). Studies demonstrate that L-lysine supplementation to cats infected with FHV-1 could reduce both clinical signs and viral shedding.

Adult cats : 1 to 2 mL twice a day.
Kittens : 1 mL twice a day, or as recommended by your veterinarian.