MotherToBaby, a service of the non-profit Organization of Teratology Information Specialists (OTIS), is the nation’s leading authority and most trusted source of evidence-based information on the benefit or risk of medications and other exposures during pregnancy and while breastfeeding. We specialize in answering questions about the benefit/risk of exposures, such as medications, vaccines, chemicals, herbal products, substances of abuse, maternal health conditions and much more, during pregnancy or breastfeeding. Our no-cost information service is available to women who are pregnant and/or breastfeeding, their family members, health professionals, and the general public via chat, text, phone, and email in both English and Spanish.