INTRODUCTION: Tinidazole shows potential as a first-line treatment for bacterial vaginosis (BV). However, its superiority to metronidazole remains uncertain. Therefore, this meta-analysis compares tinidazole versus metronidazole in patients with BV. METHODS: We systematically searched PubMed, Embase and Cochrane for studies comparing tinidazole and metronidazole in patients with BV. Statistical analyses were performed using R Studio 4.3.2. Heterogeneity was examined with the Cochran Q test and I RESULTS: Five randomized controlled trials and 1 prospective observational study, reporting data on 1,036 patients were included in this meta-analysis. Among them, 511 (49%) received tinidazole and 525 (51%) received metronidazole. Follow-up ranged from 1 to 6 weeks. There was no significant difference between groups for BV cure at the first follow-up appointment (RR 1.03
95% CI 0.92 to 1.14
I CONCLUSION: In patients with BV, tinidazole and metronidazole exhibit similar efficacy and safety, with equivalent cure rates and incidence of adverse events.