Tetanus Anti-toxin is used to prevent and treat tetanus, when there are contaminated or deep wounds that may increase the risk of infection with tetanus bacteria, especially if the tetanus vaccine has not been taken previously or if a long time has passed since the last dose of the vaccine. Tetanus Anti-toxin is given to people who have started to show symptoms of tetanus, as it helps reduce the severity of the disease by neutralizing the toxins secreted by the bacteria. It is given to people as part of a treatment plan to enhance temporary immune protection.