Table 3 Percentage maximum vasoconstriction (%V_max) and EC₅₀ values of the test materials against P. E or K⁺ (80 mM)-induced contractions in rat aortic preparations

% V_max/Conc. (mg/ml)

141.43 ± 4.63/1

-

-

221.66 ± 15.89***/1

131.95 ± 6.95*/0.03

-

Complete inhibition with resultant EC₅₀ values with 95% confidence interval

-

0.417 mg/ml (0.31–0.54)

2.01 mg/ml (1.62–2.49)

-

-

2.29 mg/ml (1.15–4.56)

Complete inhibition with resultant EC₅₀ values

4.70 mg/ml (3.94–5.60)

0.27 mg/ml (0.18–0.39)

0.31 mg/ml (0.19–0.52)

3.13 mg/ml (2.15–4.56)

0.68 mg/ml (0.41–1.14)

1.40 mg/ml (0.91–2.15)