碱性药物与颠茄类药物常配成片剂使用,如胃舒平、胃舒片等。有些医院在颠茄合剂中配有碳酸氢钠硷性药物,并作医院协定处方使用。含碳酸氢钠颠茄合剂处方,书籍亦有收载。我们曾抽检一些医院的这类合剂,其莨菪硷含量往往偏低,有的竟为标示量36%。本文根据一些资料,拟定碱性颠茄合剂茛菪硷的含量测定方法,对含碳酸氢钠颠茄合剂的稳定 Allergic drugs and belladonna drugs often used as tablets, such as stomach Shuping, stomach Shu tablets and so on. Some hospitals in the belladonna mixture with sodium bicarbonate alkaline drugs, and hospital prescriptions for use. With sodium bicarbonate Belladonna prescription, books are also included. We have sampled some of these hospitals in the mixture, the hygroscopicity of the content is often low, some were actually labeled 36%. In this paper, based on some information, the preparation of alkaloids belladonna alkaloid Determination of the content, the stability of sodium bicarbonate belladonna mixture