| Associated symptoms: symptom present 2 hours after taking study medication | ||||||
| Intervention | Studies | Attacks treated | Treatment (%) | Placebo (%) | Relative risk (95% CI) | NNTp (95% CI) |
| Nausea | ||||||
| Sumatriptan 12.5 mg | 2 | 235 | 25 | 45 | 0.60 (0.42 to 0.87) | 5.0 (3.1 to 13) |
| Sumatriptan 25 mg | 2 | 240 | 24 | 45 | 0.55 (0.38 to 0.80) | 4.8 (3.0 to 12) |
| Vomiting | ||||||
| Sumatriptan 12.5 mg | 2 | 235 | 3 | 5 | 0.45 (0.12 to 1.7) | Not calculated |
| Sumatriptan 25 mg | 2 | 240 | 1 | 5 | 0.25 (0.05 to 1.2) | Not calculated |
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