Comparison 7. Ketanserin versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Frequency of attacks per week	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
2 Duration of attacks per day (minutes)	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
3 Severity score (frequency of attacks/day X duration of attacks)	1		Mean Difference (IV, Fixed, 95% CI)	Totals not selected
4 Adverse events	1		Risk Ratio (M‐H, Fixed, 95% CI)	Totals not selected