Some studies have reported the concurrent use of dietary supplements and conventional antihypertensive drugs. For example, Co-enzyme Q10 has been reported to exhibit significant reduction of systolic blood pressure (SBP), and diastolic blood pressure (DBP), when added to conventional antihypertensive drugs (Singh et al., 1999; Rasmussen et al., 2012). Similarly, the systolic blood pressure (SBP) and diastolic blood pressure (DBP) were reported to have decreased by 6 mm Hg and 5 mmHg respectively in a trial where hypertensive men received fish oil (eicosapentaenoic acid, docosahexaenoic acid) for 4 months followed by a 2 month reassessment period (Prisco et al., 1998).