A full subscription to the current USP–NF costs thousands of dollars annually. For students, small startups, or researchers in developing countries, searching for a free PDF of an older edition like USP 39 is a way to understand the structure of the standards without paying for a live subscription.
Organizations with unique compliance needs can contact the USP directly to request official historical text extracts.
USP–NF is available through online subscription platforms that provide access to current and historical compendial content. These platforms typically offer advanced search functionality, cross-referencing, and the ability to compare versions over time.
USP 39–NF 34 is a combined compendium of official standards published by the United States Pharmacopeial Convention. Released for use primarily in 2016, this edition contains thousands of active standards governing the identity, strength, quality, and purity of medicines, dietary supplements, and food ingredients. The compendium is divided into two distinct parts: usp 39 pdf
The USP–NF is updated annually. The official “current edition” for enforcement purposes is the one published by USP and recognized by the FDA under the Federal Food, Drug, and Cosmetic Act (FD&C Act) Section 501(b).
The USP–NF is a combination of two official compendia: the United States Pharmacopeia (USP) and the National Formulary (NF). This combined publication contains legally enforceable standards for a wide range of products, including medicines, dosage forms, drug substances, excipients, biologics, compounded preparations, medical devices, dietary supplements, and other therapeutics.
USP 39 incorporated new monographs, revised existing standards, and removed obsolete ones. Key revisions included updates to general chapters such as: A full subscription to the current USP–NF costs
If your laboratory or legal team requires specific data from the USP 39 edition for historical archiving, litigation, or checking legacy manufacturing data, you should obtain it through official, legal channels.
| Source | Access Type | Cost | |--------|-------------|------| | | Archived print or digital edition (if still in stock) | Varies ($500–$1,000+ for full set) | | USP Online Platform (Online USP–NF) | Subscription-based access to current and historical editions | ~$1,400/year for full access | | University Libraries | Free physical access or interlibrary loan | Free (for students/faculty) | | Corporate Regulatory Archives | Companies often retain legacy editions | Internal use only |
USP 39 refers to the 39th edition of the United States Pharmacopeia, which is a comprehensive publication that establishes standards for the pharmaceutical industry. This edition was likely published in 2015 or 2016. Released for use primarily in 2016, this edition
– Toxicological safety assessment of extractables and leachables (planned at the time of USP 39)
When a general chapter is revised in a later supplement or edition, the new version becomes legally official, and the old version from USP 39 is no longer enforceable. While USP 39 is a valid historical document, current regulatory compliance requires using the most recent official versions of the USP–NF standards as they appear on www.uspnf.com or in official revision bulletins.
USP 39 marked a significant modernization of pharmaceutical standards, emphasizing risk-based assessment of elemental impurities via advanced analytical instrumentation (ICP-MS/OES). This framework remains critical for safeguarding public health against toxic metals in pharmaceuticals and supplements.
General chapters related to physical tests also included:
Although <800> was officially published as a separate general chapter in 2016, USP 39–NF 34 was the first compendium where a draft of <800> appeared. Some facilities still cross-reference USP 39 language when defending older hazardous drug protocols.