What is Doxazosin used for?

1 INDICATIONS AND USAGE Doxazosin tablets are an alpha 1 adrenergic antagonist indicated for: • Signs and symptoms of Benign Prostatic Hyperplasia (BPH) • Treatment of HypertensionTreatment of Hypertension 1.1 Benign Prostatic Hyperplasia (BPH) Doxazosin tablets are indicated for the treatment of the signs and symptoms of BPH. 1.2 Hypertension Doxazosin tablets are indicated for the treatment of hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of

How does Doxazosin work?

11 DESCRIPTION Doxazosin mesylate is a quinazoline compound that is a selective inhibitor of the alpha 1 subtype of alpha-adrenergic receptors.

What are the side effects of Doxazosin?

6 ADVERSE REACTIONS The most commonly reported adverse reactions from clinical trials are Fatigue, malaise, hypotension, and dizziness. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Apotex Corp at 1-800-706-5575 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the

Who should NOT take Doxazosin?

4 CONTRAINDICATIONS The use of doxazosin tablets 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 tablets. ( 4 )

Does Doxazosin interact with other medications?

7 DRUG INTERACTIONS • Strong cytochrome P450 (CYP) 3A inhibitors may increase exposure to doxazosin and increased risk of hypotension. ( 7.1 ) • Concomitant administration of doxazosin tablets with a phosphodiesterase-5 (PDE-5) inhibitor can result in additive blood pressure lowering effects and symptomatic hypotension. ( 7.2 ) 7.1 CYP 3A Inhibitors In vitro studies suggest that doxazosin is a substrate of CYP 3A4. Strong CYP3A inhibitors may increase exposure to doxazosin. Mon

Can Doxazosin be used during pregnancy?

8 USE IN SPECIFIC POPULATIONS • Hepatic Impairment: Monitor for hypotension. ( 8.6 , 12.3 ) 8.1 Pregnancy Risk Summary The limited available data with doxazosin tablets in pregnant women are not sufficient to inform a drug-associated risk for major birth defects and miscarriage. However, untreated hypertension during pregnancy can result in increased maternal risks [ see Clinical Considerations ]. In animal reproduction studies, no adverse developmental effects were observed wh

What precautions should be taken with Doxazosin?

•Prostate cancer should be ruled out before starting therapy. • Orthostatic hypotension may occur at the initiation of therapy or when there is dose increase. • Avoid driving or performing hazardous tasks for 24 hour after starting therapy or dose changes. • Consult with your doctor during Pregnancy and breastfeeding.

What ATC class does Doxazosin belong to?

Doxazosin: ATC G04CA + C02CA04. ATC is the WHO Anatomical Therapeutic Chemical classification — it groups drugs by organ system and pharmacological mechanism.

OTC

Doxazosin

4 mg, Tabletki

INN: Doxazosinum

Data updated: 2026-04-24

Available in:

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Form

Tabletki

Dosage

4 mg

Route

—

Storage

Recommended Storage: Store at 25°C (77°F); ex‍‍‍‍‍‍‍‍‍‍‍‍‍cursions permitted from 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature].

About This Product

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