Tetanus Anti-toxin injections are used to prevent and treat tetanus, a serious bacterial infection caused by the presence of Clostridium tetani bacteria in wounds. This treatment is used in emergency cases to reduce the risk of tetanus infection when exposed to contaminated wounds, especially if the person is not fully vaccinated or his vaccination status is unknown. Tetanus Anti-toxin is also used to manage cases of tetanus in patients by providing antibodies that help fight the toxins produced by the bacteria.