PLEASE NOTE, this page will no longer be available effective 12/16/19.
Skip Navigation

United States Department of Health and Human Services

Specialized Information Services

National Library of Medicine
As the National Library of Medicine (NLM) implements its Strategic Plan, 2017-2027, it is making organizational changes that included the closure of the Specialized Information Services (SIS) Division on June 30, 2019. The transition of some SIS programs into other parts of NLM, including the Toxicology Data Network (TOXNET), serves to not only improve discoverability of and access to SIS resources by NLM's broad set of users, but also enables NLM to leverage its talents and resources to improve overall efficiency and effectiveness.

Over the next few months, some SIS resources and programs will transition to other parts of NLM, be integrated into other NLM resources, made accessible on partner sites, or discontinued. TOXNET is moving, most of its content will continue to be collected and reviewed; selected information is accessible through PubChem, PubMed, and Bookshelf.

Questions about this transition and individual resources may be directed to NLM Customer Support or 1-888-346-3656.

Toxicology, environmental health, chemistry, HIV/AIDS, disaster health, and topics relevant to specific populations