TABLE 1.

Comparison of the Adverse Effects of Doxazosin and Prazosin^a

Adverse Effect	Doxazosin (%)	Prazosin (%)
Dizziness	19	10
Headache	14	8
Drowsiness	5	8
Edema	4	1–4
Vertigo	2	1–4
Nervousness	2	<1
Impotence	2	<1
Palpitations	1.5	5
Nausea	1.2	5
Anxiety	1.1	1–4
Hypotension	1	1–4
Pruritis	1	<1
Rash	1	1–4
Depression	1	1–4
Paresthesias	1	1–4
Urinary frequency	<.5	1–4
Nasal congestion	<.5	1–4
Hallucination	<.5	1–4
Vomiting	<.5	1–4
Priapism	<.5	<1
Incontinence	<.5	<1
Tachycardia	<.5	<1

^aTable is arranged in descending order of the adverse effects of doxazosin.

Data from package inserts.^12,13