- Drug Information Portal
From the US National Library of Medicine. Searches more than a dozen sources for information about more than 12,000 drugs - LactMed
A peer-reviewed and fully referenced database of drugs to which breastfeeding mothers may be exposed. Among the data included are maternal and infant levels of drugs, possible effects on breastfed infants and on lactation, and alternate drugs to consider - Natural Medicines, (formerly Natural Standard)
Natural Medicines is an authoritative resource available on dietary supplements, natural medicines, and complementary, alternative, and integrative therapies
