Understanding High Blood Pressure

High Blood Pressure Medicines

Today’s blood pressure medicines can safely help most people control their blood pressures. These medicines are easy to take. The side effects, if any, tend to be minor.

If you have side effects from your medicines, talk to your doctor. He or she may be able to adjust the doses or prescribe other medicines. You shouldn’t decide on your own to stop taking your medicines.

Blood pressure medicines work in different ways to lower blood pressure. Some remove extra fluid and salt from the body to lower blood pressure. Others slow down the heartbeat or relax and widen blood vessels. Often, two or more medicines work better than one.

Diuretics

Diuretics are sometimes called water pills. They help your kidneys flush excess water and salt from your body. This lessens the amount of fluid in your blood, and your blood pressure goes down.

Diuretics often are used with other HBP medicines and sometimes combined into one pill.

Beta Blockers

Beta blockers help your heart beat slower and with less force. Your heart pumps less blood through your blood vessels, and your blood pressure goes down.

ACE Inhibitors

ACE inhibitors keep your body from making a hormone called angiotensin II. This hormone normally causes blood vessels to narrow. ACE inhibitors prevent this, so your blood pressure goes down.

Angiotensin II Receptor Blockers

Angiotensin II receptor blockers (ARBs) are newer blood pressure medicines that protect your blood vessels from angiotensin II. As a result, blood vessels relax and widen, and your blood pressure goes down.

Calcium Channel Blockers

Calcium channel blockers (CCBs) keep calcium from entering the muscle cells of your heart and blood vessels. This allows blood vessels to relax, and your blood pressure goes down.

Alpha Blockers

Alpha blockers reduce nerve impulses that tighten blood vessels. This allows blood to flow more freely, causing blood pressure to go down.

Alpha-Beta Blockers

Alpha-beta blockers reduce nerve impulses the same way alpha blockers do. However, they also slow the heartbeat like beta blockers. As a result, blood pressure goes down.

Nervous System Inhibitors

Nervous system inhibitors increase nerve impulses from the brain to relax and widen blood vessels. This causes blood pressure to go down.

Vasodilators

Vasodilators relax the muscles in blood vessel walls. This causes blood pressure to go down.

Treatment for Children and Teens

If another condition is causing your child’s HBP, treating it often resolves the HBP. When the cause of a child or teen’s HBP isn’t known, the first line of treatment is lifestyle changes (as it is for adults).

If lifestyle changes don’t control blood pressure, children and teens also may need to take medicines. Most of the medicines listed above for adults have unique doses for children.

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Last modified: March 5, 2009