Atacand is a prescription medication specifically designed to manage hypertension (high blood pressure) and treat heart failure. Its active ingredient, candesartan cilexetil, belongs to the angiotensin II receptor blockers (ARBs) class. By blocking the action of angiotensin II, a powerful vasoconstrictor, Atacand effectively lowers blood pressure, reduces strain on the heart, and improves the symptoms of heart failure. This action helps prevent strokes, heart attacks, and kidney problems.