Tetanus immune globulin, commonly known as TIG, is a medication used to prevent tetanus infection. This drug contains antibodies that bind to the tetanus bacteria and neutralize its effects. However, there are several synonyms for tetanus immune globulin that can be used interchangeably. The most common ones include tetanus antitoxin, tetanus immunoglobulin, and human tetanus antitoxin. These synonyms are often used in medical literature, and they refer to the same medication. Tetanus immune globulin is usually administered to individuals who have suffered tetanus-prone injuries or have not received tetanus vaccination. The medication is typically given in combination with other treatments to prevent the spread of the deadly tetanus bacteria.