are male or female, between the ages of 35-60 years;

have a systolic blood pressure between 140 mmhg-160 mmhg;

have a diastolic blood pressure between 90 mmhg-99 mmhg; and

are on 3 or more conventional anti-hypertensive medications of different drug classes, one of which must be a diuretic.

have a systolic blood pressure < 140 mmhg; > 160 mmhg;

have a diastolic blood pressure < 90 mmhg; > 99 mmhg;

are pregnant or lactating;

are on any other herbal or homoeopathic medicine for the treatment of hypertension;

have secondary organ damage from hypertension; and or

suffer from chronic conditions such as severe cardiac disease, renal failure, malignant hypertension or diabetes mellitus.