RESUMEN
OBJECTIVE: To provide an overview of selected drug information-related databases of the National Library of Medicine (NLM), with a focus on newer resources that support the professional information needs of pharmacists and other health care providers. SUMMARY: NLM, which is the world's largest medical library, provides an array of bibliographic, factual, and evidence-based drug, herbal remedy, and dietary supplement information resources. Five of the more recently introduced online resources include areas of particular importance to pharmacists, including a repository of current product labeling/package inserts, with automated search links to associated information resources; a portal to drug information that allows pharmacists to search multiple databases simultaneously and link to related medication and health care information resources; authoritative information on the effects of medications, herbal remedies, and dietary supplements in nursing infants and their mothers; comprehensive information, including a case registry, on the potential for liver toxicity due to drugs, herbal remedies, and dietary supplements; and a pill identification system with two intuitive search methodologies. CONCLUSION: NLM provides several clinical-scientific drug information resources that are particularly useful in meeting the professional information needs of pharmacists.