Berberine is one of the quaternary ammonium alkaloids extracted from fresh roots of Coptis chinensis Franch,and it is applied widely in clinic with significant curative effect for some disease.

• 小檗碱是一种从黄连等植物中提取的季胺类生物碱,对多种疾病具有显著疗效,已在临床上广泛应用。