Efficacy and safety of Suanzaoren decoction for primary insomnia: a systematic review of randomized controlled trials

This is the authors' abstract. We don't add key points for this paper.

Despite the apparent reported positive findings, there is insufficient evidence to support efficacy of SZRD for insomnia due to the poor methodological quality and the small number of trials of the included studies. SZRD seems generally safe, but is insufficient evidence to make conclusions on the safety because fewer studies reported the adverse events. Further large sample-size and well-designed RCTs are needed.