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Drugs That Widen Blood Vessels


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These medicines help stop the body from reacting to certain hormones that affect the heart and blood flow. They widen blood vessels. They may help to:

  • Lower your risk of hospital stay due to heart failure.

  • Improve your chances of living longer.

  • Make you feel better.

Some things to watch for:

  • Feeling dizzy or light-headed. If it keeps up, call your doctor.


  • Tongue or facial swelling, and/or skin rash with or without itching. Don’t try to treat this yourself. Call your doctor right away.


  • Confusion; heartbeat that skips; nervousness; numbness or tingling in the hands, feet, or lips; weakness or heaviness of the legs. These can be signs of too much potassium in your body. Call your doctor right away.


  • Cough. If this keeps up or is severe, call your doctor.

Other choices

There is a second type of medicine that lets blood flow more freely. You may be placed on either medicine.

Some things to watch for:

  • Allergic reactions like trouble breathing; closed throat; swelling of your lips, tongue, or face; or hives

  • Diarrhea or upset stomach

  • Dizziness or headache

  • Muscle pain or cramps

Also of Interest

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