Doxazosin
Cardura (doxazosin) is an alpha-1 adrenergic blocker used to treat high blood pressure and benign prostatic hyperplasia (BPH). It works by relaxing blood vessels and smooth muscles in the prostate and bladder neck.
Cardura is a prescription blood pressure medication that also helps relieve urinary symptoms from an enlarged prostate.
Key facts at a glance
- RxNorm
- 196468
- Generic
- Cardura
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of hypertension (high blood pressure) and benign prostatic hyperplasia (BPH), a condition where the prostate gland is enlarged and causes urinary difficulties in men.
As an alpha-1 blocker, Cardura relaxes smooth muscle cells in blood vessel walls and in the prostate and bladder neck, allowing blood vessels to widen and improving urine flow.
May cause dizziness or fainting, especially with the first dose; use caution when driving until you know how the medication affects you. Do not stop taking this medication abruptly without consulting your doctor. Inform your doctor of all medications you are taking, as interactions may occur.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy