A dose of reserpine 0.5 mg/day or greater achieved the SBP effects .
AUTHORS ' CONCLUSIONS Reserpine is effective in reducing SBP roughly to the same degree as other first-line antihypertensive drugs .
BACKGROUND Many antihypertensive agents exist today for the treatment of primary hypertension ( systolic blood pressure ≥ 140 mmHg or diastolic blood pressure ≥ 90 mmHg , or both ) .
R and omised controlled trials ( RCTs ) have been carried out to investigate the evidence for these agents .
There is , for example , strong RCT evidence that thiazides reduce mortality and morbidity .
Some of those trials used reserpine as a second-line therapy .
However , the dose-related blood pressure reduction with this agent is not known .
OBJECTIVES The primary objective of this review was to quantify the dose-related efficacy of reserpine versus placebo or no treatment in reducing systolic blood pressure ( SBP ) or diastolic blood pressure ( DBP ) , or both .
We also aim ed to evaluate the dose-related effects of reserpine  on mean arterial blood pressure ( MAP ) and heart rate ( HR ) , as well as the dose-related effects on withdrawals due to adverse events .
Comparative evaluation of Rauwolfia whole root and reserpine
To compare the antihypertensive effect of a Rauwolfia whole root‐chlorothiazide combination with reserpine plus chlorothiazide , subjects were selected who had average diastolic pressures of 90 mm . Hg or more at home , in the sitting position . In a double‐blind study providing 3 months on each regimen with a 6 week placebo period intervening , no significant difference in antihypertensive effect was demonstrated between the whole root Rauwolfia‐chlorothiazide combination and the reserpine plus chlorothiazide
A dose of reserpine 0.5 mg/day or greater achieved the SBP effects .
AUTHORS ' CONCLUSIONS Reserpine is effective in reducing SBP roughly to the same degree as other first-line antihypertensive drugs .
BACKGROUND Many antihypertensive agents exist today for the treatment of primary hypertension ( systolic blood pressure ≥ 140 mmHg or diastolic blood pressure ≥ 90 mmHg , or both ) .
R and omised controlled trials ( RCTs ) have been carried out to investigate the evidence for these agents .
There is , for example , strong RCT evidence that thiazides reduce mortality and morbidity .
Some of those trials used reserpine as a second-line therapy .
However , the dose-related blood pressure reduction with this agent is not known .
OBJECTIVES The primary objective of this review was to quantify the dose-related efficacy of reserpine versus placebo or no treatment in reducing systolic blood pressure ( SBP ) or diastolic blood pressure ( DBP ) , or both .
We also aim ed to evaluate the dose-related effects of reserpine  on mean arterial blood pressure ( MAP ) and heart rate ( HR ) , as well as the dose-related effects on withdrawals due to adverse events .