Fig. 3From: Fexofenadine: review of safety, efficacy and unmet needs in children with allergic rhinitisThe effects of first-generation antihistamines on the sleep/wake cycle. REM, rapid eye movement. Data from Church et al. Allergy. 2010 Apr; 65(4):459–466 and Boyle et al. Curr Med Res Opin; 22:1343–1351Back to article page