Losartan, irbesartan, olmesartan, candesartan, valsartan, fimasartan and azilsartan include the tetrazole group (a ring with four nitrogen and one carbon). Losartan, irbesartan, olmesartan, candesartan, and telmisartan include one or two imidazole groups.
Angiotensin II receptor blocker
Calcium channel blocker
ACE inhibitor
Adrenergic blocking agent
SGLT2 inhibitor
Mercurial diuretic
Lipid-lowering agent
Adenosine receptor antagonist