MotherToBaby.org provides information about exposure to medications during pregnancy and breastfeeding.
The Organization of Teratology Informational Specialists (OTIS), a nonprofit organization, publishes the website.
Tips for use:
– On the Fact Sheets page, scroll to Medications or to Infections & Vaccines for information about what is known and not known about specific medications and vaccines during pregnancy and breastfeeding.
Reviewed October 2025