title: Guidelines for drug therapy during lactation.
abstract: The issues that should be taken into consideration when counseling the lactating mother who requires short-term or long-term drug therapy are reviewed. The process of milk formation, the principles of drug transport, factors affecting the appearance of a drug in breast milk, possible effects on infants of substances ingested through breast milk, evaluation of the safety of a drug for an infant, information available about various classes of drugs, and principles for counseling breastfeeding patients about medications are discussed.
mesh_terms: D001711:Biotransformation; D064420:Drug-Related Side Effects and Adverse Reactions; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007774:Lactation / Q000187:drug effects*; D008895:Milk, Human / Q000187:drug effects; D011247:Pregnancy; D012306:Risk