Table 2.

Effect of P. quadrangularis (Pq) on systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse pressure (PP) of normotensive rats.

Blood Pressure	Control	10 mg/kg Pq	20 mg/kg Pq	40 mg/kg Pq
SBP, mmHg	111 ± 6	107 ± 2	103 ± 2	99 ± 2
DBP, mmHg	75 ± 6	73 ± 1	66 ± 3	49 ± 1 **
PP, mmHg	36 ± 5	35 ± 3	37 ± 3	50 ± 2 *

Values are mean ± standard error of the mean of 5 experiments in mmHg. * p < 0.05; ** p < 0.01 vs. control.