Prazosin Dosage

Generic name: prazosin
Brand name: Minipress
Drug class: Antiadrenergic agents, peripherally acting

Medically reviewed by  A Ras MD.

 Recommended Adult Dosing

Dosage forms:  CAP: 1 mg, 2 mg, 5 mg

HTN

[6-15 mg/day PO divided bid-tid]

Start: 1 mg PO bid-tid; Max: 20 mg/day; Info: give 1st dose at bedtime

*Benign prostatic hypertrophy

[0.5-1 mg PO bid]

Max: 4 mg/day

*Nightmares, post-traumatic stress disorder-assoc.

[3-15 mg PO qhs]

Start: 1 mg PO qhs, then incr. by 1-2 mg/day q3-4 days; Max: 15 mg/day

Renal dosing

[no adjustment]

renal impairment: no adjustment

HD/PD: no adjustment; no supplement

Hepatic dosing

[not defined]

SRC: NLM .