Because of a lapse in government funding, the information on this
website may not be up to date, transactions submitted via the
website may not be processed, and the agency may not be able to
respond to inquiries until appropriations are enacted. The NIH
Clinical Center (the research hospital of NIH) is open. For more
details about its operating status, please visit
cc.nih.gov. Updates
regarding government operating status and resumption of normal
operations can be found at
opm.gov.
A list of the drugs that satisfy the priority health care needs of the majority of a population. According to the World Health Organization, these drugs should be available at all times in adequate amounts and in appropriate dosage forms and quality, at a price the community can afford.