Where can you search for specific medications and their safety in mothers while breastfeeding?

The US National Library of Medicine (NLM) at the National Institutes of Health (NIH) maintains LactMed®, a database containing information on drugs and other chemicals to which breastfeeding mothers may be exposed.

LactMed® includes information on the levels of such substances in breast milk and infant blood and the possible adverse effects in the nursing infant. Suggested therapeutic alternatives to those drugs are provided, where appropriate. All data come from scientific literature and are fully referenced. A peer review panel reviews the data for scientific validity and currency.

Another good source is the Infant Risk Center of the Texas Tech University Health Sciences Center. They are a leading research center for medication safety during pregnancy and lactation. Check out their MommyMeds for Mothers app for the latest medication safety guidelines.