Participants with hypertension who were treated with antihypertensive agents were randomly assigned to an active (KRG 2 g/day) or a placebo treatment group in a double-blind cross over manner.
Participants were not allowed to change their antihypertensive medications except safety issue. Brachial systolic BP (SBP), diastolic BP (DBP), Central SBP and DBP will measured at baseline,at 2 and 4 months.
Efficacy and safety data will be monitored by Daegu Catholic University Medical Center Institutional Review Board and reported to the Korean Ginseng Society.
