Uses
Doxazosin is an alpha 1 adrenergic antagonist indicated for: • Signs and symptoms of Benign Prostatic Hyperplasia (BPH). • Treatment of Hypertension
Source: US FDA prescribing information
- Presentations
- 10
- Brands
- 2
- Manufacturers
- 1
- Available from stock
- 0
Doxazosin is an alpha-adrenergic blocker indicated for signs and symptoms of Benign Prostatic Hyperplasia (BPH), among other approved uses. It is available as tablets and extended-release tablets for oral use. MedsAcross supplies Doxazosin for export from India to licensed hospitals, importers and physicians acting for named patients, with the documents each country requires.
Information from the US FDA prescribing information, retrieved 12 November 2026. Not yet medically reviewed.How we review
Key facts
- Pharmacological class
- Alpha-Adrenergic Blocker, Adrenergic alpha-Antagonists
- ATC classification
- C02CA04 Doxazosin · Other blood pressure medicines, subgroup C02C, subgroup C02CA
- US FDA first approval
- 2 November 1990
- EU status
- Not recorded
- Orphan designation
- Not recorded
- WHO essential medicine
- Not recorded
- India (CDSCO)
- Not yet confirmed against CDSCO approval lists
- Routes
- Oral
- Dosage forms
- Tablet, Extended-release tablet
- Identifiers
- UNII NW1291F1W8RxCUI 49276CAS 74191-85-8DrugBank DB00590Q419939
Clinical information
From the regulator-approved product information. Each section names its source.
How it works
Benign Prostatic Hyperplasia (BPH) The symptoms associated with benign prostatic hyperplasia (BPH), such as urinary frequency, nocturia, weak stream, hesitancy, and incomplete emptying are related to two components, anatomical (static) and functional (dynamic). The static component is related to an increase in prostate size caused, in part, by a proliferation of smooth muscle cells in the prostatic stroma. However, the severity of BPH symptoms and the degree of urethral obstruction do not correlate well with the size of the prostate. The dynamic component of BPH is associated with an increase in smooth muscle tone in the prostate and bladder neck. The degree of tone in this area is mediated by the alpha 1 adrenoceptor, which is present in high density in the prostatic stroma, prostatic capsule and bladder neck.
Source: US FDA prescribing information
Dosing overview
• For the treatment of BPH: Initiate therapy at 1 mg once daily. Dose may be titrated at 1 to 2-week intervals, up to 8 mg once daily. • For the treatment of hypertension: Initiate therapy at 1 mg once daily. Dose may be titrated as needed, up to 16 mg once daily.
Source: US FDA prescribing information
Contraindications
The use of Doxazosin tablet is contraindicated in patients with a hypersensitivity to doxazosin, other quinazolines (e.g., prazosin, terazosin), or any of its components. • Hypersensitivity to doxazosin, other quinazolines, or any other ingredient in Doxazosin.
Source: US FDA prescribing information
Warnings and precautions
• Postural hypotension with or without syncope may occur. • Risk of Intraoperative Floppy Iris Syndrome during cataract surgery. • Screen for the presence of prostate cancer prior to treatment for BPH and at regular intervals afterwards.
Source: US FDA prescribing information
Side effects
The most commonly reported adverse reactions from clinical trials are fatigue, malaise, hypotension, and dizziness.
Source: US FDA prescribing information
Interactions
• Strong cytochrome P450 (CYP) 3A inhibitors may increase exposure to doxazosin and increased risk of hypotension. • Concomitant administration of Doxazosin with a phosphodiesterase-5 (PDE-5) inhibitor can result in additive blood pressure lowering effects and symptomatic hypotension.
Source: US FDA prescribing information
Storage
Store at 25°C (77°F), excursions permitted from 15°C to 30°C (59°F to 86°F).
Source: US FDA prescribing information
For healthcare professionals and buyers. This is not medical advice. Treatment decisions belong to the prescriber.
All presentations
10 presentations of Doxazosin, sorted by availability.
| Medicine | Manufacturer | Register | Availability |
|---|---|---|---|
| Doxazosin 4 mg tabletOralGeneric name | — | US FDA | Available on request |
| Doxazosin 2 mg tabletOralGeneric name | — | US FDA | Available on request |
| Doxazosin 1 mg tabletOralGeneric name | — | US FDA | Available on request |
| Doxazosin 8 mg tabletOralGeneric name | — | US FDA | Available on request |
| Cardura 4 mg tabletOral | Viatris Specialty | US FDA | Available on request |
| Cardura 8 mg tabletOral | Viatris Specialty | US FDA | Available on request |
| Cardura 2 mg tabletOral | Viatris Specialty | US FDA | Available on request |
| Cardura 1 mg tabletOral | Viatris Specialty | US FDA | Available on request |
| Cardura XL 4 mg extended-release tabletOral | Viatris Specialty | US FDA | Available on request |
| Cardura XL 8 mg extended-release tabletOral | Viatris Specialty | US FDA | Available on request |
Brands by market
2 brand names across 1 markets.
United States
Manufacturers
Regulatory status
Approval facts from US FDA, EMA and CDSCO data, and registration status by country where we hold register data.
| Register | Status | Source |
|---|---|---|
| US FDA | First approved 2 November 1990 | Drugs@FDA |
| EU (EMA) | Not recorded | — |
| India (CDSCO) | Not yet confirmed against CDSCO approval lists | — |
| United States | Registered | US FDA (NDC directory, openFDA)Checked 12 November 2026 |
Conditions
Conditions linked to Doxazosin in public data. This is not a list of approved uses, see the clinical information.
Questions and answers
Is Doxazosin available for export from India?
Yes, on request. MedsAcross lists 10 presentations of Doxazosin and sources them for licensed hospitals, importers and physicians against valid import documents.
What brand names does Doxazosin have?
The catalogue lists 2 brand names for Doxazosin, including Cardura, Cardura XL.
Is Doxazosin approved by the US FDA?
Yes. The US FDA first approved Doxazosin on 2 November 1990, according to Drugs@FDA.
Does Doxazosin need cold chain shipping?
No listed presentation of Doxazosin is recorded as needing a cold chain. Storage conditions are shown on each presentation page.
Which ATC class is Doxazosin in?
Doxazosin is classified under ATC code C02CA04 (Doxazosin).
References
- Doxazosin mesylate prescribing information (Mylan Pharmaceuticals). U.S. National Library of Medicine, DailyMed. Retrieved 11 March 2024
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