Comparison 12. Levocetirizine 5 mg/d versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Primary outcome 1. Mean change in patient‐assessed symptoms: mean difference in VAS pruritus between baseline and 2 and 4 weeks after randomisation	1		Mean Difference (IV, Random, 95% CI)	Subtotals only
1.1 2 weeks after randomisation	1	21	Mean Difference (IV, Random, 95% CI)	‐0.79 [‐3.54, 1.96]
1.2 4 weeks after randomisation	1	21	Mean Difference (IV, Random, 95% CI)	‐0.59 [‐3.46, 2.28]