Comparison 13. Levocetirizine 0.25 mg/kg/d.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Primary outcome 2. Adverse events	1		Risk Ratio (M‐H, Random, 95% CI)	Subtotals only
1.1 One or more adverse events	1	510	Risk Ratio (M‐H, Random, 95% CI)	1.01 [0.98, 1.05]
1.2 Treatment‐attributed adverse events	1	510	Risk Ratio (M‐H, Random, 95% CI)	0.81 [0.40, 1.65]
1.3 Serious adverse events	1	510	Risk Ratio (M‐H, Random, 95% CI)	0.84 [0.54, 1.31]
1.4 Treatment‐attributed serious adverse events	1	510	Risk Ratio (M‐H, Random, 95% CI)	0.33 [0.01, 8.14]
1.5 Adverse events that led to discontinuation	1	510	Risk Ratio (M‐H, Random, 95% CI)	1.67 [0.40, 6.90]