Background: Sufentanil is one of the opioids currently used to induce general anesthesia, and cough is one of the most common complications. Many drugs have been used to prevent sufentanil-induced cough (SIC), and dezocine is one of them. Dezocine is an analgesic, acting as partial antagonist of κ-receptors and agonist of μ-receptors. The purpose of our meta-analysis is to evaluate the efficacy of dezocine on SIC. Methods: We searched multiple databases including PubMed, Embase, ScienceDirect, the Cochrane Library, and China National Knowledge Infrastructure databases (CNKI) to identify studies that met the inclusion criteria. This meta-analysis focused on the incidence and severity of SIC after dezocine intervention, as well as adverse effects. This meta-analysis was registered on PROSPERO with reference number ID: CRD 42020144943. Results: Five randomised controlled trials (RCTs) were identified, including 890 patients. Each study was a comparison of dezocine with an equal volume of 0.9% saline. When the injection dose of dezocine was 0.1 mg/kg, the incidence (pooled risk ratio (RR) = 0.03, [95% CI: 0.02 to 0.
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