(Pfizer Animal Health) Modified live virus for protection against panleukopenia (cat distemper), calici, rhinotracheitis and chlamydia. Cats 12 weeks of age or older should receive two doses, 3-4 weeks apart. Cats vaccinated at less than 12 weeks of age should be revaccinated at 12 weeks of age. Give IM or SQ. Annual revaccination is recommended. Not for pregnant queens. Requires mixing. Order syringes separately.