An antianginal is any drug used in the treatment of angina pectoris, a symptom of ischaemic heart disease. ==Types== ===Stable Angina=== Pain due to atherosclerosis causing incomplete coronary artery occlusion. Pain onset with strenuous activity or emotional strain due to increased myocardial oxygen demand. ===Unstable Angina=== Pain due to athero... Found on http://en.wikipedia.org/wiki/Antianginal