A group of drugs that widen blood vessels. Vasodilator drugs include ACE inhibitors, alphablockers, calcium channel blockers, nitrate drugs, and sympatholytic drugs. They are used to treat disorders in which abnormal narrowing of blood vessels reduces blood flow through tissues, impairing the supply of oxygen. Such disorders include angina pectoris and peripheral vascular disease. Vasodilators are also used to treat hypertension and heart failure. All vasodilator drugs may cause flushing, headaches, dizziness, fainting, and swollen ankles.
Vasodilator drugs |
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