<p>Ceritinib can cause fetal harm when administered to a pregnant woman. If it is used during pregnancy or if the patient becomes pregnant while taking it, the patient should be apprised of the potential hazard to the fetus. There are no data regarding the presence of Ceritinib or its metabolites in human milk, the effects of Ceritinib on the breastfed infant, or its effects on milk production. Because of the potential for serious adverse reactions including gastrointestinal adverse reactions, hepatotoxicity, pneumonitis, bradycardia and pancreatitis, a woman should be advised not to breastfeed during treatment with Cerinib and for 2 weeks following completion of therapy.</p>