Angina is pain or discomfort in the chest, often characterized by a heaviness or tightness that may spread to other parts of the body, such as the arms, neck, jaw, back, or stomach. It is a warning sign of heart disease and recognizing it early can help prevent a heart attack. Angina occurs because the blood is not providing the heart with enough oxygen.
Angina is usually treated with lifestyle changes, such as increasing the patient’s exercise level and improving their diet, and with medication. Drug classes commonly used to treat angina are selective beta blockers, dihydropyridine calcium channel blockers, B2-stimulants, anticoagulants, nitrates, antiplatelet drugs, HMG-COA reductase inhibitors / statins and cardiovascular agent combinations, anti-anginal agents and anti-arrhythmics, class IV.