For use as an aid in prevention and treatment of tetanus in animals. Contains phenol and thimerosal as preservatives. Administration of tetanus antitoxin is recommended for use whenever a non-immunized animal, or one whose immune status is unknown, suffers a deep penetrating wound that has or may become contaminated with soil. It provides quick but short-term protection.
Antitoxin may also be administered to animals following castration, docking, and other operations performed on premises upon which tetanus infection has been a problem.
Tetanus antitoxin confers immediate passive immunity lasting about 7 to 14 days. 1500 units administered subcutaneously or intramuscularly is the recommended dose for prevention.
Large doses of tetanus antitoxin may provide beneficial response in animals already infected with tetanus, but success of treatment is not assured. For treatment, administer 10,000 to 50,000 units to horses and cattle; 3,000-15,000 units to sheep and swine. Do not vaccinate within 21 days before slaughter.