Doxazosin in patients with hypertension.
The antihypertensive effects and steady-state pharmacokinetics of doxazosin, as well as the bioequivalence of four dosage forms, were studied in 25 hypertensive patients. For an 8 mg daily dose mean Cmax at steady-state for all patients was 108 ng/ml; the mean tmax was 1.8 h. The mean terminal elimination half-life was 22 h. The four tablets containing 1, 2, 4, or 8 mg of doxazosin were bioequivalent in delivering the 8 mg dose. In patients with mild to moderate hypertension, 26-day treatment with doxazosin resulted in blood pressure reduction of 10/7 mmHg in the supine and 13/18 mmHg in the standing position. Adverse effects were generally mild and of brief duration.
Conrad
K A
KA
University of Arizona College of Medicine Tucson 85724.
Fagan
T C
TC
Mackie
M J
MJ
Mayshar
P V
PV
Lee
S
S
Souhrada
J F
JF
Falkner
F C
FC
Lazar
J D
JD
D000328:Adult; D000959:Antihypertensive Agents / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D017292:Doxazosin; D005260:Female; D006207:Half-Life; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011224:Prazosin / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000493:pharmacokinetics / Q000627:therapeutic use
D000959:Antihypertensive Agents; D017292:Doxazosin; D011224:Prazosin