A calcium channel blocker, such as diltiazem, is indicated for the management of Prinzmetal's angina. The class of medication would reduce the incidence of coronary artery spasm. A beta-adrenergic blocker, such as metoprolol, is used to treat angina by decreasing myocardial oxygen needs, and has no effect on coronary artery spasms. An ACE inhibitor, such as enalapril, is used to manage hypertension. An inotropic vasodilator, such as milrinone, is indicated for short-term IV therapy in heart failure.
