Research progress on excipient,preparation and evaluation of Chinese patent medicine placebo
Placebo-controlled trial is one of the most commonly used clinical randomized controlled trial methods in new drug development.However,there are many difficulties in the preparation of Chinese patent medicine placebo.The difficulty is that the composition of Chinese medicine compound is complex and the smell,taste and color of Chinese medicine are more prominent and unique than chemical medicine, pharmaceutical excipient and food. However, there are few types of excipient used to simulate taste and odor, and there is no perfect statistics and induction of odor, taste and color simulation excipient, so the simulation is difficult. In view of the difficulties in the preparation of Chinese patent medicine placebo, food additives, food or drug-food dual-use substance,spices and other excipient that can be used to simulate odor, taste and color were summarized, and the existing preparation and evaluation methods were summarized, in order to provide reference for the research on excipient, preparation and evaluation methods of Chinese patent medicine placebo.
Chinese patent medicineplacebopharmaceutical excipientnew drug developmentpreparationadditive