Acupuncture-related therapies for opioid-induced constipation in patients with cancer: a systematic review and network meta-analysis.

To evaluate the efficacy and safety of acupuncture-related therapies for opioid-induced constipation (OIC) in patients with cancer through pairwise and network meta-analysis (NMA). We searched eight electronic databases from inception to June 28, 2025, and identified randomized controlled trials (RC