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Terazosin hydrochloride

Generic Name: terazosin (ter AY zo sin)
Brand Names: Hytrin
Terazosin is used to treat hypertension (high blood pressure) and benign prostatic hyperplasia (enlarged prostate). Learn about side effects, interactions and indications.

Average Savings for terazosin hydrochloride (generic): 9.78%
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Drug Information:
Terazosin is in a group of drugs called alpha-adrenergic blockers. Terazosin relaxes your veins and arteries so that blood can more easily pass through them. It also relaxes the muscles in the prostate and bladder neck, making it easier to urinate. Terazosin is used to treat hypertension (high blood pressure), or to improve urination in men with benign prostatic hyperplasia (enlarged prostate). Terazosin may also be used for other purposes not listed in this medication guide. Terazosin may cause dizziness or fainting, especially when you first start taking it or when you start taking it again. You may wish to take this medication only at bedtime if it causes you to feel light-headed. Be careful if you drive or do anything that requires you to be alert. Avoid standing for long periods of time or becoming overheated during exercise and in hot weather. Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Learn more

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Terazosin hydrochloride Side Effects

In Summary

Commonly reported side effects of terazosin include: dizziness. Other side effects include: asthenia, headache, and peripheral edema. See below for a comprehensive list of adverse effects.

For the Consumer

Applies to terazosin: oral capsule

Along with its needed effects, terazosin 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 while taking terazosin:

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

Rare

  • Weight gain

Some side effects of terazosin 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

For Healthcare Professionals

Applies to terazosin: oral capsule, oral tablet

General

Asthenia, blurred vision, dizziness, impotence, nasal congestion/rhinitis, nausea, somnolence, palpitations, peripheral edema, and postural hypotension were significantly more common (p-value less than or equal to 0.05) in patients receiving this drug than in patients receiving placebo.

Nervous system

Very common (10% or more): Dizziness (up to 19.3%), headache (up to 16.2%)

Common (1% to 10%): Syncope, somnolence, paresthesia

Other

Very common (10% or more): Asthenia (up to 11.3%)

Common (1% to 10%): Flu syndrome, vertigo, peripheral edema

Uncommon (0.1% to 1%): Edema

Frequency not reported: Chest pain, facial edema, fever, cold symptoms, flu symptoms, tinnitus

Cardiovascular

Common (1% to 10%): Postural hypotension, palpitations, tachycardia

Uncommon (0.1% to 1%): Hypotension

Frequency not reported: Arrhythmia, vasodilation

Postmarketing reports: Atrial fibrillation

Respiratory

Common (1% to 10%): Dyspnea, nasal congestion/rhinitis, sinusitis

Frequency not reported: Bronchitis, epistaxis, cough increased, pharyngitis

Musculoskeletal

Common (1% to 10%): Back pain, pain-extremities

Frequency not reported: Neck pain, shoulder pain, arthralgia, arthritis, joint disorder, myalgia

Genitourinary

Common (1% to 10%): Impotence, urinary tract infection

Frequency not reported: Urinary frequency, urinary incontinence

Postmarketing reports: Priapism

Psychiatric

Common (1% to 10%): Nervousness

Uncommon (0.1% to 1%): Depression, libido decreased

Frequency not reported: Anxiety, insomnia

Gastrointestinal

Common (1% to 10%): Nausea

Frequency not reported: Abdominal pain, constipation, diarrhea, dry mouth, dyspepsia, flatulence, vomiting

Ocular

Common (1% to 10%): Blurred vision/amblyopia

Frequency not reported: Vision abnormal, conjunctivitis

Metabolic

Uncommon (0.1% to 1%): Weight gain

Frequency not reported: Gout

Dermatologic

Frequency not reported: Pruritus, rash, sweating

Immunologic

Postmarketing reports: Allergic reactions, anaphylaxis

Hematologic

Postmarketing reports: Thrombocytopenia

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/1/2020.

Source: Drugs.com Terazosin Hydrochloride (www.drugs.com/terazosin.html).