title: [Research on the origins and development of the verse "eighteen antagonism" in Chinese material medica].
abstract: The verse "eighteen antagonism" of Chinese materia medica is a kind of describing of drug nature concerning the incompatibility of drugs in compound prescription. Through organizing the medical books in different historical periods, it is found that the drugs in this verse basically coming from TAO Hong-jing's ben cao jing ji zhu (Variorum of Shennong's Classic of Materia Medica), while the style of verse mostly appeared during the Song-Jin-Yuan period was made. The formed verse was explained and supplemented further in the Ming Dynasty, the basis of which appeared in the Song-Jin-Yuan Dynasty, resulting in the increase of the number of antagonistic drugs and lengthy verse. The origin of the verse seen in Ru men shi qin (Confucians' Duties to Their Parents) and those in other books was not identical and was the most popular one after the Qing Dynasty, becoming the most popularly known even today.
authors.affiliation: School of Basic Medical Sciences, Nanjing University of Chinese Medicine, Nanjing, 210046, China.
authors.forename: Huan
authors.initials: H
authors.lastname: Yang
authors.forename: Xin-Sheng
authors.initials: XS
authors.lastname: Fan
authors.forename: Ya-Li
authors.initials: YL
authors.lastname: Bian
authors.forename: Yun
authors.initials: Y
authors.lastname: Li
authors.forename: Chen-Xue
authors.initials: CX
authors.lastname: Jiang