Durvet Focus Cat Vax 3 is a subcutaneous vaccine that provides three-way protection against Feline Herpesvirus, Feline Calicivirus, and Feline Distemper. Designed for healthy cats and kittens eight weeks of age or older, it helps prevent common, widespread feline diseases. The vaccine contains F9 Calici antigen for superior protection and modified live virus fractions for rapid immunity. Suitable for initial vaccinations and boosters, it is easy to administer and meets or exceeds all USDA standards, supporting the long-term health of cats and kittens.