Second generation antihistamine and piperidine-type compound, without the sedative and anticholinergic effects of first generation antihistaminics. Pharmacokinetic data (moderately high molecular weight and high percentage of protein binding) make it unlikely an excretion into breast milk in significant amounts. Until more published data on this drug regarding breastfeeding is available, safer alternatives of better known drugs should be preferable, especially during the neonatal period and in case of prematurity. Follow-up the baby for drowsiness and inappropriate infant feeding.