... — U.s. Pharmacopeia National Formulary 2018: Usp

: Standards in USP 41–NF 36 became official on May 1, 2018 , following their release on November 1, 2017, to allow manufacturers time to align their testing methods.

: USP continued updating general chapters to modernize organic impurities testing , ensuring that drug product monographs reflect current analytical capabilities.

: The 2018 edition integrated updates from the Pharmacopeial Discussion Group (PDG) , which works to align standards across global pharmacopeias to facilitate international trade and regulatory consistency.

: The edition utilized over 3,500 Reference Standards to verify the identity, strength, and purity of medicines, helping manufacturers maintain compliance with USP-NF quality benchmarks .