Breastfeeding and the use of psychotropic medication: a review.

The advisability of continuing breastfeeding is an important issue for women with postpartum depression or psychosis. A review of the literature on psychotropic drugs in breast milk is presented. All of the major classes of psychotropic drugs (antidepressants, antipsychotics, antianxiety agents, lithium, hypnotics) have been shown to pass into breast milk following maternal ingestion. Generally, the doses to which children are exposed from breast milk, calculated from measured milk/plasma ratios, are small. Nevertheless most authors err on the side of caution and suggest that breastfeeding be avoided. There is inadequate research on the excretion of drugs into breast milk and the effects on the infant.