Telmisartan is a medication used to treat Hypertension. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. It works by relaxing blood vessels so blood can flow more easily. Telmisartan belongs to a class of drugs called angiotensin II receptor blockers (ARBs). Angiotensin II receptor blockers work by relaxing your veins and arteries to lower your blood pressure and make it easier for your heart to pump blood. If you also want to learn other anti-hypertensive drugs, click the link below: Telmisartan – mechanism of action of telmisartan | dr. This video explains the mechanism of action of Telmisartan in the reduction of blood pressure. This video also explains some common side effects of Telmisartan.