复方樟脑酊广泛用于镇咳、镇痛、腹痛和腹泻等。按药典的配制方法是将阿片酊直接加入60%的醇中,所得成品经放置后出现大量沉淀。这是因为阿片酊的制造是以水作溶媒浸出的,含醇量仅为41～46%。当加入60%的乙醇时,因突然改变了溶媒的浓度,使阿片酊中的水溶性物质变成细微的粒子不断析出,因而造成过 Compound camphor tincture is widely used in antitussive, analgesic, abdominal pain and diarrhea. Pharmacopoeia according to the preparation method is directly added opium tincture of 60% alcohol, the resulting product after placing a large number of precipitation. This is because opiate tincture is leached with water as a solvent and has an alcohol content of only 41 to 46%. When adding 60% ethanol, due to a sudden change in the concentration of the solvent, opium tincture of water-soluble substances into fine particles continue to precipitate, resulting in