TELMA 40 TAB 30S is a tablet containing 40mg of Telmisartan, which is an angiotensin II receptor blocker. It works by relaxing blood vessels, allowing blood to flow more easily and lowering blood pressure. Telma 40 is prescribed to patients with hypertension to help lower their blood pressure and reduce the risk of heart attack and stroke. It is usually taken once a day, with or without food. Common side effects may include dizziness, headache, and fatigue. It is important to follow the dosage instructions provided by your doctor and not to stop taking the medication without consulting them first.