TERAZOSIN HYDROCLORIDE DEHYDRATE

Terazosin belongs to a class of drugs called alpha blockers, which relax certain muscles and help small blood vessels remain open. Alpha blockers work by keeping the hormone norepinephrine (noradrenaline) from tightening the muscles in the walls of smaller arteries and veins, which causes the vessels to remain open and relaxed. This improves blood flow and lowers blood pressure. Because alpha blockers also relax other muscles throughout the body, these medications can help improve urine flow in older men with prostate problems.

Treatment of hypertension and benign prostatic hyperplasia (BPH).

You should not use this medication if you are allergic to terazosin.

If you have a history of prostate cancer, you may need a dose adjustment or special tests to safely take terazosin.

Terazosin can affect your pupils during cataract surgery. Tell your eye surgeon ahead of time that you are using this medication. Do not stop using terazosin before surgery unless your surgeon tells you to.

Dizziness, lightheadedness, tiredness, nausea, drowsiness, blurred vision, headache, or stuffy nose may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

Precautions

Before taking terazosin, tell your doctor or pharmacist if you are allergic to it; or to other alpha blockers such as doxazosin or prazosin; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: low blood pressure/fainting, certain eye problems (cataracts, glaucoma).

 

Interactions

Some products that may interact with this drug include: other alpha blocker drugs (such as prazosin, tamsulosin).

If you are also taking a drug to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil), your blood pressure may get too low which can lead to dizziness or fainting. Your doctor may need to adjust your medications to minimize this risk.

Symptoms of overdose include sinus bradycardia (slow heartbeat) and hypotension. If overdose is suspected, bring the victim to the hospital immediately.

 

Available brands:

  • Conmy (Taiwan Biotech)
  • Hykor (Korea United Pharma)
  • Hytrin (Abbott)
  • Prostera (Sandoz)
  • Terozin (Ultramed)

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