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USP-NF – U.S. Pharmacopeia-National Formulary

The United States Pharmacopeia National Formulary (USP-NF) is updated on an ongoing basis. During the year, the revisions are published in the supplements appearing twice a year and are included in the main issue of the USP-NF once a year.

Short-term revisions of the USP-NF are published on the USP homepage:

  • Notices of revisions / revisions
  • Interim revision announcements (IRAs)
  • Corrections (Errata)

With a period of 6 months between publication and official validity, the users are given time to change internal requirements, e.g. for the transfer of new and revised monographs to the laboratory.

Forms of publication: