Der Anaesthesist
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Whenever an anesthetic is needed during the breast feeding period, potential pharmacological side-effects imposed on the infant by any kind of anesthetic agent used during both general and regional anesthesia are in contrast to the potential beneficial effects of breast feeding for the infant and the mother. Despite an increasing knowledge and understanding of the mechanisms of excretion of drugs and their metabolites through breast milk, information about most anesthetic drugs are still either inconclusive or contradictory. Often it is impossible to decide whether a certain substance that is potentially excreted through breast milk might be harmless or harmful for the breast-fed infant. ⋯ Even planned elective surgical procedures do not need to be postponed. No scientifically based interval between surgery under general or regional anesthesia and resumption of breast feeding can be recommended. Instead current opinion is that breast feeding can be resumed as soon as the mother feels physically and mentally capable to do so.