Olmysar 40mg is a prescription medication containing olmesartan medoxomil, used to treat high blood pressure (hypertension). Each pack contains 28 film-coated tablets designed for once-daily oral administration. The medication belongs to a class of drugs called angiotensin II receptor blockers (ARBs). It works by blocking the action of certain natural substances that tighten blood vessels, allowing blood to flow more smoothly and the heart to pump more efficiently. The tablets come in a white box with distinctive blue arrow branding. As a prescription medication, it should only be taken under medical supervision and according to the prescribed dosage.