Comparison 1. Naproxen 200 mg or naproxen sodium 220 mg versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 participants with at least 50% pain relief over 4 to 6 hours	2	202	Risk Ratio (M‐H, Fixed, 95% CI)	2.87 [1.60, 5.15]