Olmesartan is used to treat hypertension (high blood pressure). It works by blocking the effect of a hormone called angiotensin II. Unopposed, this substance prompts the blood vessels to contract, an action that tends to raise blood pressure. Olmesartan relaxes and expands the blood vessels, allowing pressure to drop.
Olmesartan medoxomil is 2,3-dihydroxy-2-butenyl 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[p-(o-1H-tetrazol-5-ylphenyl)benzyl]imidazole-5-carboxylate, cyclic 2,3-carbonate. Its empirical formula is C29H30N6O6.
Olmesartan medoxomil is a white to light yellowish-white powder or crystalline powder with a molecular weight of 558.6. It is practically insoluble in water and sparingly soluble in methanol. Olmesartan medoxomil, a prodrug, is hydrolyzed to olmesartan during absorption from the gastrointestinal tract.
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