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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 1 Drowsiness | 1 | 170 | Risk Ratio (M-H, Fixed, 95% CI) | 0.08 [0.03, 0.18] |
| 2 Heartburn | 1 | 170 | Risk Ratio (M-H, Fixed, 95% CI) | 1.44 [0.65, 3.20] |
