Pharmacokinetic data (moderately high molecular weight and high protein binding capacity) explain its nil or negligible amount observed in breast milk (McNamara, 2004), such that a breastfed infant would receive a maximum of 35 micrograms per day of Itraconazole, amount which is a hundred times lower than the pediatric dose of 5 mg / kg / day currently recommended (Janssen Cazzaniga 2014 and 1996) Both, low oral bioavailability and alkaline pH hinder its absorption from ingested milk. It is used to treat fungal infections in children, including premature babies, with a good tolerance. Itraconazole significantly increases plasma concentrations of Domperidone, which must be taken into account in case of simultaneous administration of both drugs.