For vaccination of healthy horses as an aid in the prevention of equine encephalomyelitis due to Eastern and Western viruses, equine influenza due to types A1 and A2 viruses, and tetanus.
Horses, inject one 1 mL dose intramuscularly. Administer a second 1 mL dose 3 to 4 weeks after the first dose. A 1 mL booster dose should be given annually.