Indicated for use in healthy cattle, sheep and goats as an aid in the prevention of enterotoxemia caused by Clostridium perfringens Types B, C, and D. Clostridium perfringens Type B is not a significant problem in North America. For use in healthy swine as an aid in the prevention of enterotoxemia caused by Clostridium perfringens Type C. Contains thimerosal as a preservative. Inject 2 ml subcutaneously or intramuscularly. Repeat full dose in 3 to 4 weeks. Historically, annual vaccination is recommended.