Final answer:
Angiotensin II receptor agents are medications that typically end with the suffix 'sar-tan', such as Losartan and Valsartan, and they are used to treat high blood pressure by blocking the effects of angiotensin II.
Step-by-step explanation:
Angiotensin II receptor agents, which are used to treat hypertension or high blood pressure, usually end with the suffix 'sar-tan'. Examples of such medications include Losartan (Cozaar), Telmisartan (Micardis), Valsartan (Diovan), Candesartan (Atacand), Eprosartan (Teveten), and Irbesartan (Avapro). These drugs are part of a class known as Angiotensin II Receptor Blockers (ARBs) or Angiotensin-2 Receptor Antagonists and serve to block the effects of angiotensin II, a powerful vasoconstrictor that increases blood pressure, thereby aiding in the management of hypertension.