Nitrates (Nitrogylcerin): provide symptomatic relief by means of several mechanisms, including coronary vasodilation, improved collateral blood flow, decrease in preload (venodilation and reduced venous return), and decrease in afterload (arterial vasodilation)
:!!: contraindications: cardiomyopathy, constrictive pericarditis, hypersensitivity to nitrates, increased intracranial pressure