经方中细辛配伍应用规律研究

Application Law of the Compatibility of Xixin in Classical Prescription

从用法用量、主治证候、配伍规律三方面,考证《伤寒杂病论》中20首含细辛的经方及相关原文,提出:1)经方中细辛入丸散剂时日服用量不超过1.05 g,与后世“细辛入散剂不过钱”理论相契合;入汤剂时用量较大,煎煮时间应大于45 min,以达到减毒效果;2)细辛主要用于感寒、正虚引起的咳喘、痰饮、疼痛等;3)细辛配伍麻黄、桂枝等解表药物可辛温发散表邪;配伍干姜、附子等温里药物可以加强温里散寒之功;与干姜、半夏、五味子共用具有止咳化饮的功效。

Through investigating 20 pieces of classical prescriptions containing Xixin(Manchurian Wildginger)and the related original texts in Shanghan Zabinglun from the dosage and usage,main symptoms and signs,compatibility laws,the author raised:1)the daily dosage shall not exceed 1.05 g when Xixin is applied in the pills and powder of classical prescription,it is consistent with the later"the dosage of Xixin should not exceed 3 g(estimated)in the powder";its dosage in the decoction is greater,and the decoction time lasts longer than 45 minutes,to achieve the effects of detoxification;2)Xixin is mainly used for catching cold,asthma,phlegm and retained fluid,pain and others caused by the deficiency of healthy Qi;3)Xixin could disperse the external pathogen when combined with Mahuang(Herba ephedrae),Guizhi(Ramulus cinnamomi)and others of relieving the exterior;it could enhance the effects of warming the interior and dispersing cold in the combination of dried ginger,Fuzi(Prepared Common Monkshood Daughter Root)and others of warming the interior;it could stop the cough and resolve the retained fluid when combined with dried ginger,Banxia(Pinellia Tuber)and Wuweizi(Fructus schisandrae chinensis).