Tetglob 250IU Injection is used to prevent tetanus (also known as lockjaw). It contains Tetanus Immunoglobulin, which helps develop immunity by initiating a mild infection. This type of infection does not cause illness, but it does stimulate the body's immune system to produce antibodies to protect against future infections. In some cases, you may experience some common side effects like injection site tenderness, injection site pain, nausea, chest pain, shortness of breath, shaking, dizziness, swelling of the face, coating of the tongue, joint pains, and slight fever. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.