Telmeros M 40mg/50mg Tablet XL is a drug used to treat hypertension. Hypertension, or an increase in blood pressure, develops when the blood arteries that provide blood to the heart narrow. As a result, blood cannot flow easily to the heart, the heart rate rises, and it fails to properly pump blood to the rest of the body. This puts strain on the heart, which can result in chest pain or a heart attack. Telmeros M 40mg/50mg Tablet XL lowers blood pressure. It relaxes blood arteries, allowing blood to flow more readily to the heart. This minimizes the strain on the heart and slows its rhythm.