Similar to 10 -5 mol/L Ach, 20g/L acid or neutral water decoction of FRR significantly relaxed isolated aorta precontracted with 10 -6 mol/L NA.

• 酸性和中性玫瑰花水煎剂均可明显扩张去甲肾上腺素预收缩主动脉平滑肌条 ,此作用与 10 5mol/LAch相似。