The Drug Information Portal is a free Web resource from the NLM that provides an informative, user friendly entry-way to current drug information for over 16,000 drugs. Links to sources span the breadth of NLM, the National Institutes of Health (NIH), and other US government agencies. Current information regarding consumer health, clinical trials, AIDS-related drug information, MeSH pharmacological actions, PubMed biomedical literature, and physical properties and structure is easily retrieved by searching on a drug name. A varied selection of focused topics in medicine and drug-related information is also available from displayed subject headings. A new version of the  National Library of Medicine (NLM) Drug Information Portal was released in October 2008.  See: http://druginfo.nlm.nih.gov