盐酸苯海索片又叫安坦片,中国药典(1985年版)二部用表面活性剂法测定其含量。由于样品用量大,操作麻烦,费时、费事,而且指示剂和滴定液奇缺,常常影响日常检验工作。本文根据溶出度测定的需要,利用酸性染料与叔 Diphenhydramine hydrochloride tablets, also known as Andam tablets, Chinese Pharmacopoeia (1985 edition) two with surfactant method to determine its content. Due to the large amount of sample used, the operation is cumbersome, time consuming and cumbersome, and the lack of indicator and titrant often affects routine testing. In this paper, according to the needs of dissolution determination, the use of acid dyes and tertiary