• Lili Cai, Lianqi Liu, Zhibing Jiang, Zhongxing Liang, and Yuehua Yang.
• Department of Psychiatric Rehabilitation, Guangzhou Kangning Hospital, Guangzhou 510430, China.
• Medicine (Baltimore). 2024 Mar 8; 103 (10): e37226e37226.

BackgroundThe efficacy and safety of Xiaoyao Pill combined with Western medicine in the treatment of schizophrenia are still inconclusive. This meta-analysis summarized relevant studies to compare the efficacy and safety of Xiaoyao Pill combined with Western medicine and Western medicine alone in the treatment of schizophrenia, aiming to provide guidance for clinical treatment.MethodsIn this meta-analysis, we searched PubMed, Embase, Cochrane Library, CNKI, Wanfang, CQVIP, and CBM databases from the establishment of the databases to August 2023. The study proposed to include studies that reported combination of Xiaoyao Pill with Western medicine and Western medicine alone in the treatment of schizophrenia, excluding published literature, unpublished literature, literature with incomplete or inadequate information, animal experiments, literature reviews and systematic studies. Data were analyzed using Review manager 5.3.ResultsAbout 9 studies (6 RCTs and 3 case-control studies) were included in this meta-analysis. The sample size ranged from 60 to 128, with a total of 779 patients, including 395 in the combined treatment group and 384 in the control group. Pooled results showed that the total effective rate of combined treatment group was significantly higher than that of Western medicine alone (OR = 4.21, 95% CI: 1.50-11.83, P = .006). Positive and Negative Syndrome Scale (PANSS) (-) (MD = -2.30, 95% CI: -3.72 ~ -0.89, P = .001) and PANSS (+) (MD = -2.60, 95% CI: -3.34 ~ -1.86, P < .00001) of combined treatment group were all significantly lower than that of Western medicine alone. Additionally, PRL levels of combined treatment group was significantly lower than that of Western medicine alone (MD = -28.78, 95% CI: -42.20 ~ -15.35, P < .0001). However, there was no significant difference in BPRS and total PANSS between combined treatment group and Western medicine alone group. Notably, pooled results showed that there was no significant difference in incidence of adverse events between combined treatment group and Western medicine alone group.ConclusionThe effective rate of Xiaoyao Pill combined with Western medicine in the treatment of schizophrenia is higher than that of Western medicine alone, which can effectively relieve the positive and negative symptoms of schizophrenia, and can significantly reduce the level of PRL. In the treatment of schizophrenia, clinicians can give priority to Xiaoyao Pill combined with Western medicine therapy.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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