Tetglob 500IU Injection is recommended for prevention of tetanus following injury in patients whose tetanus immunization is incomplete or uncertain. Tetanus causes convulsions (seizures) and severe muscle spasms that can be strong enough to cause bone fractures of the spine. Tetglob 500IU Injection provides immediate, short-term protection against the bacteria that causes tetanus (lockjaw). A single intramuscular (IM) injection is generally recommended for children and adults, with part of the dose infiltrated around the wound if it can be identified. This protection lasts long enough to protect your body until your body can produce its own antibodies against tetanus. It is to be administered only by or under the supervision of your doctor or other healthcare professional. You may feel tired or drowsy following your tetanus vaccination.