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Terazosin

Terazosin Side Effects

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

Benign prostatic hyperplasia (BPH):

  • Dizziness (9%)
  • Weakness (7%)

High blood pressure:

  • Dizziness (19%)
  • Headache (16%)
  • Weakness (11%)

Less Common Side Effects

  • Feeling tired
  • Swelling in the arms or legs
  • Back or limb pain
  • Weight gain
  • Fast or pounding heartbeat
  • Shortness of breath
  • Feeling nervous
  • Nausea
  • Blurry vision
  • Stuffy nose

Terazosin serious side effects

Contact your healthcare provider immediately if you experience any of the following.

  • Priapism: painful erection that lasts more than 4 hours
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Source: DailyMed

The following Terazosin side effects have also been reported

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

More common

Dizziness

Less common

Chest pain

dizziness or lightheadedness when getting up from a lying or sitting position

fainting (sudden)

fast or irregular heartbeat

pounding heartbeat

shortness of breath

swelling of feet or lower legs

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Headache

unusual tiredness or weakness

Less common

Back or joint pain

blurred vision

drowsiness

nausea and vomiting

stuffy nose

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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Why trust our experts?

Kaitlyn works as a pharmacist intern for a large community pharmacy chain. She is going on 4 years of experience in this area of practice.
Connie Zheng, PharmD, is a drug information pharmacist at GoodRx and a licensed pharmacist in California. She has over 6 years of experience working in independent pharmacies.

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