本文实验证明了山胡椒叶、毛细辛、野百里香3种中草药挥发油,均有一定的镇痛作用;与戊巴比妥钠伍用,可出现协同的中枢抑制效应;对离体兔肠平滑肌有松弛作用,并能拮抗乙酰胆碱引起的肠平滑肌收缩;对组胺引起的离体豚鼠气管平滑肌痉挛,有缓解作用。山胡椒叶挥发油在整体豚鼠实验时,表现有显著的平喘作用。这3种挥发油均不能拮抗戊四唑引起的惊厥。 This experiment proved that the three essential oils of Chinese herbal medicines, ie, pepper, capillaria, and wild thyme, all have certain analgesic effects; when combined with pentobarbital sodium, a synergistic central inhibitory effect may appear; and there is an isolated rabbit intestinal smooth muscle. Relaxation, and can antagonize the intestinal smooth muscle contraction caused by acetylcholine; histamine induced guinea pig tracheal smooth muscle spasm, have a mitigating effect. The volatile oil of the mountain pepper leaves showed remarkable asthma effect in the whole guinea pig experiment. None of these three volatile oils could antagonize seizures caused by pentylenetetrazol.