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CARDURA XL
Benign prostatic hyperplasia/urinary retention
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Drug Name:

CARDURA XL Rx

Generic Name and Formulations:
Doxazosin (as mesylate) 4mg, 8mg; ext-rel tabs.

Company:
Pfizer Inc.

Therapeutic Use:

Indications for CARDURA XL:

BPH.

Adult:

Swallow whole. Take w. breakfast. Initially 4mg once daily; may titrate after 3–4 weeks to max 8mg/day. If therapy is stopped for several days, restart at 4mg once daily. Switching from Cardura to Cardura XL: initially 4mg once daily; do not take final evening dose of Cardura. Concomitant PDE-5 inhibitors: initiate at lowest dose.

Children:

Not established.

Warnings/Precautions:

Severe hepatic impairment: not recommended. Mild or moderate hepatic impairment. Syncope. Symptomatic hypotension. Exclude prostate cancer. Severe GI narrowing. Coronary insufficiency; discontinue if angina pectoris appears or worsen. Cataract surgery (intraoperative floppy iris syndrome possible). Elderly. Pregnancy, nursing mothers: not indicated for females.

Interactions:

Caution with strong CYP3A4 inhibitors (eg, atanazavir, clarithromycin, indinavir, ketoconazole, itraconazole, nefazodone, others). Additive hypotension with concomitant PDE-5 inhibitors.

Pharmacological Class:

Alpha-1 blocker.

Adverse Reactions:

Headache, dizziness, asthenia, hypotension, dyspnea, postural hypotension, somnolence, respiratory or urinary tract infections; rare: priapism.

How Supplied:

Tabs—30

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