(Merck) Nobivac Feline 1-HCP+FELV is a modified live virus vaccine for protection against feline rhinotracheitis (feline herpes), calici, panleukopenia (cat distemper) and feline leukemia. Give 1 ml SQ or IM to cats 9 weeks of age or older. Repeat in 3 to 4 weeks. Revaccinate every two years with a single dose of Nobivac Feline 1-HCP+FeLV. Revaccination in the intervening years with Nobivac Feline 1-HCP is recommended. Not for pregnant queens. Requires mixing. Order syringes separately.