What is the brand name for Doxazosin?
The brand name for Doxazosin is Cardura.
PTCE Top 200 · #180
Doxazosin
Cardura
Doxazosin is the generic name for the brand-name drug Cardura. It is an alpha-1 blocker used to treat BPH, hypertension. On the PTCE Top 200 drug list, Doxazosin ranks #180 and is one of the most frequently tested cardiovascular medications — commonly quizzed on its brand–generic pair, drug class, and key side effects.
| Generic name | Doxazosin |
|---|---|
| Brand name(s) | Cardura |
| Drug class | Alpha-1 blocker |
| Class group | Cardiovascular |
| Common use | BPH, hypertension |
| DEA schedule | Unscheduled |
| Availability | Prescription only (Rx) |
What is Doxazosin used for?
Treatment of hypertension; also used for benign prostatic hyperplasia (BPH) urinary symptoms (product-specific).
What drug class is Doxazosin?
Doxazosin is an Alpha-1 blocker in the Cardiovascular group. Knowing the class is the fastest way to predict its uses, side effects, and the brand↔generic pairs the PTCE tests.
Common side effects of Doxazosin
- arrow_rightDizziness
- arrow_rightOrthostatic hypotension
- arrow_rightFatigue
- arrow_rightHeadache
- arrow_rightDrowsiness
- arrow_rightEdema
Major interactions
- arrow_rightPDE5 inhibitors (sildenafil, tadalafil) can cause significant hypotension (dose/separation considerations)
- arrow_rightOther antihypertensives (additive hypotension)
- arrow_rightAlcohol may worsen orthostatic symptoms
- arrow_rightCYP3A4 inhibitors may increase doxazosin levels (monitor)
Is Doxazosin a controlled substance?
No. Doxazosin is not a federally controlled substance (it is unscheduled by the DEA).
How to remember Doxazosin (PTCE mnemonic)
CARD-ura CARDs HTN + BPH — DOX-azoSIN is α1 blocker. 'FIRST-DOSE SYNCOPE' (take at BEDTIME!); orthostasis, dizziness; ALLHAT showed worse outcomes than thiazide for HTN.
lightbulb
PTCE exam tip
The -osin alpha blockers share the FIRST-DOSE effect — take at bedtime to avoid orthostatic fainting; doxazosin covers both BPH and blood pressure.
Doxazosin FAQ
What is Doxazosin used for?
Doxazosin is used to treat BPH, hypertension. Treatment of hypertension; also used for benign prostatic hyperplasia (BPH) urinary symptoms (product-specific).
What drug class is Doxazosin?
Doxazosin is an Alpha-1 blocker (Cardiovascular group).
Is Doxazosin a controlled substance?
No. Doxazosin is not a federally controlled substance (it is unscheduled by the DEA).
Related drugs in the Cardiovascular group
Drill Doxazosin the way the PTCE asks it
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Last reviewed June 25, 2026. Educational use only — not medical advice. Verify clinical specifics with your pharmacist or a current label source such as DailyMed. RxReflex is not affiliated with or endorsed by the Pharmacy Technician Certification Board (PTCB).