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LactMed (Drugs and Lactation Database)

Published by National Library of Medicine | U.S. Department of Health & Human Services | Catalog Last Checked: August 08, 2025 at 02:14 PM | Dataset Last Updated: June 18, 2025
LactMed (Drugs and Lactation Database) contains information on drugs and other chemicals to which breastfeeding mothers may be exposed. It 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.

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