Terazosin is an alpha-1 adrenergic blocker used to treat high blood pressure and symptoms of benign prostatic hyperplasia (BPH), a condition in which the prostate gland becomes enlarged. It works by relaxing the muscles in the blood vessels and the prostate, which helps lower blood pressure and improve urine flow in men with BPH. Terazosin is typically taken once daily and may take several weeks to achieve full therapeutic effects. Because it can cause a significant drop in blood pressure when first starting treatment, it is often initiated at a low dose and taken at bedtime to minimize dizziness or fainting.
- Terazosin is classified as an alpha-1 adrenergic receptor blocker.
- It is commonly prescribed to treat high blood pressure (hypertension).
- Terazosin is also FDA-approved for benign prostatic hyperplasia (BPH), helping improve urinary symptoms in men.
- It works by relaxing smooth muscle in blood vessels, which reduces vascular resistance and lowers blood pressure.
- In BPH, it relaxes muscle in the bladder neck and prostate, improving urine flow and reducing urinary frequency and urgency.
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Terazosin Side Effects
Terazosin is an alpha-1 adrenergic blocker used to treat high blood pressure and symptoms of benign prostatic hyperplasia (BPH). It works by relaxing smooth muscles in blood vessels and the prostate, which helps lower blood pressure and improve urine flow. Typically taken once daily—often at bedtime to minimize dizziness—terazosin is started at a low dose to reduce the risk of orthostatic hypotension, a condition where blood pressure drops suddenly upon standing. Full effects may take several weeks. Common side effects include dizziness, lightheadedness, fatigue, headache, nasal congestion, and nausea. Some men may experience sexual side effects such as ejaculation disorders or reduced performance. Less commonly, terazosin can cause chest pain, rapid heartbeat, or swelling of the hands, feet, or ankles. Rare but serious allergic reactions such as rash, itching, or difficulty breathing may occur. Patients should avoid driving or operating machinery until they understand how the medication affects them, and alcohol or other blood pressure medications may increase the risk of low blood pressure. Regular monitoring of blood pressure and BPH symptoms is recommended to ensure safe and effective treatment.
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Consumer Information Use and Disclaimer
This information should not be used to decide whether or not to take this medicine or any other medicine. Only a healthcare provider has the knowledge and training to decide which medicines are right for you. TelyRx does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a limited summary of general information about the medicine’s uses from the patient education materials and is not intended to be comprehensive. This limited summary does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not intended to provide medical advice, diagnosis or treatment and does not replace information you may receive from your healthcare provider. For a more detailed summary of information about the risks and benefits of using this medicine, please review the entire patient education information you receive with the medication.
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