Met XL 12.5 Tablet belongs to a group of medicines called beta-blockers used to treat high blood pressure (hypertension), heart-related chest pain (angina), irregular heart rhythm (arrhythmia), and to protect the heart after a heart attack (myocardial infarction). Hypertension or high blood pressure is a chronic condition in which the blood exerts an increased pressure against the arteries that may lead to various types of heart diseases. Besides this, Met XL 12.5 Tablet may also help in relieving symptoms of migraine-related headache and tremors (fits).