Table. 1. EC₅₀ and Emax values of safranal vasodilatory effects in aortic rings precontracted by using PE and incubated by using L-NAME and indomethacin, in aortic rings precontracted by using KCl, and in denuded vessels.

	PE	Indomethacin + PE	L-NAME + PE	KCl	Denuded
EC50	0.29	0.34	0.43	0.34	0.46
Emax	110.6	105.04	102.5	101.7	97.8

EC₅₀, effective concentration 50; PE, phenylephrine; L-NAME, N-nitro-L-arginine methylester.