A preparation model of Chinese medicine decoction placebo.

Chinese medicine (CM) decoction placebo is one of the key factors restricting the placebo-controlled clinical trial of CM. In this article, based on the analysis of the diffificulties in preparing CM placebo, the production requirements for placebo were put forward. Moreover, in accordance with clinical practices, a production method and evaluation process of CM decoction placebo was proposed, to provide a reference for clinical research.