VetriScience Laboratories - Vetri Lysine Plus, 120 Bite-Sized Chews Vetri Lysine Plus is recommended by veterinarians for feline conditions that are responsive to Lysine Lysine Plus may help prevent the replication of the FVR virus. Lysine may help manage signs associated with the Feline Herpes Virus Lysine supports immune system function and eye health in growing kittens Each bag contains 120 chicken liver flavored chews VetriScience products are veterinarian formulated and manufactured in the USA