本文主要对甘肃当归(Angelica sinensis(Oliv.)Diels)根挥发油、根挥发油中性部分及当归茎叶挥发油的镇痛、镇静、离体豚鼠气管及离体子宫平滑肌、麻醉犬、家兔的血压、心率、呼吸等作用进行了初步探讨。 一、镇痛:用小白鼠进行以下实验,剂量~1/_5LD_(50)。 1.扭体法:根油、根油中性部分及茎叶油抑制率均高,特别是茎叶油可达49.3％(P.O.)和99.3％(i.P.) 2.足趾刺激法:根油及根油中性不明显,茎叶油作用明显(P<0.01)痛阈提高率达391.2％。 This article mainly focuses on the analgesic, sedative, and isolated guinea pig trachea and isolated uterine smooth muscles, anesthetized dogs, and rabbits in Gansu Angelica (Angelica sinensis (Oliv.) Diels) root volatile oil, root volatile oil neutral and angelica stem leaf volatile oil. The role of heart rate, respiration, etc. was initially discussed. First, analgesia: The following experiments were performed with mice. The dose was ~1/_5LD_(50). 1. Writhing method: The root oil, the neutral oil of root oil, and the inhibition rate of stem and leaf oil are all high, especially stem and leaf oils can reach 49.3% (PO) and 99.3% (iP). 2. Toe stimulation method: root oil The root oil had no obvious neutrality, and the effect of stem and leaf oil was significant (P<0.01). The rate of increase of pain threshold was 391.2%.