antihypertensive agent

A type of drug used to treat high blood pressure. There are many different types of antihypertensive agents, and they work in different ways to lower blood pressure. Some remove extra fluid and salt from the body. Others relax and widen the blood vessels or slow the heartbeat. A person may respond better and have fewer side effects with one drug than with another. Some patients need more than one antihypertensive agent to lower their blood pressure.