“药引”也称“引药” ,是具有引导药物发挥药效 ,扩大方药应用范围的药物。虽然它在临床运用时是以辅助成分出现 ,但却能起到事半功倍的效果 ,是中医处方用药的独特之处。“药引”的明确提出始于宋代设立和剂局之后 ,丸、散剂在临床中的盛行 ,促使药引得到广泛应用。金、元以 “Pharmaceutical cited” is also called “primary drug” and is a drug that has the effect of guiding the use of drugs to exert pharmacodynamics and expand the scope of application of prescription drugs. Although it appears as an adjunct in clinical practice, it has the effect of doing more with less. It is unique in the prescription medicine of traditional Chinese medicine. The clear proposal of “drug cited” began after the establishment of the agent bureau in the Song Dynasty. Pills and powders prevailed in clinical practice, prompting widespread use of pharmacokinetics. Gold and Yuan