Introduction
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This page provides access to the latest editions of all USP 2025 monographs and general chapters (United States Pharmacopeia 48 – NF 43).
United States Pharmacopeia 48 - NF 43
The United States Pharmacopeia (USP) and the National Formulary (NF) are two authoritative references that have been merged into one publication, forming the USP 2025 PDF (United States Pharmacopeia 48 - NF 43).
This combined edition offers comprehensive standards and guidance for pharmaceuticals, biological products, chemical substances, dosage forms, excipients, medical devices, dietary supplements, and other healthcare preparations.
For medicinal products manufactured and distributed within the United States, the Food and Drug Administration (FDA) recognizes and may enforce the most current USPNF standards as official.
You can conveniently view, study, or download the USP 2025 PDF (United States Pharmacopeia 48 – NF 43) for free.
General Chapters
Each General Chapter is identified by a numerical code placed within angle brackets next to the chapter title (e.g., Chromatography). These chapters cover:
Descriptions of analytical tests and methods applicable to individual monographs
Specifications and best practices for pharmaceutical compounding
General information on interpreting compendial standards
Guidelines for proper storage, dispensing, and packaging of pharmaceuticals
Overall recommendations for manufacturers of official substances and finished products
When referenced in a monograph, the acceptance criteria for a general chapter are typically listed following the main content.
Some chapters serve as introductory overviews for analytical techniques and may refer to additional chapters containing detailed methods, procedures, or acceptance standards.
Monographs - USP 2025
Monographs in the pharmacopeia represent official documentation of a drug’s name, description, definition, labeling, storage, and packaging requirements.
They also detail the procedures, tests, and quality standards necessary to confirm a product’s integrity and compliance.
Refer to Section 5, Monograph Components, for comprehensive guidance on general monograph specifications.
Because some substances may meet USP or NF criteria while differing in certain aspects, users should confirm equivalency or verify the relevant parameters before application to ensure consistency across preparations.
Within the pharmacopeia, monographs provide the official names, definitions, specifications, and regulatory information concerning labeling, packaging, and storage.
Each monograph defines tests, analytical methods, and acceptance criteria that ensure the identity, potency, quality, and purity of pharmaceutical substances.
Section 5, titled Monograph Components, outlines general requirements for each part of a monograph.
Since not every monograph addresses all possible attributes, some recognized substances may comply with USP or NF standards but still differ in properties due to their specific or non-standard characteristics.
In such cases, users should verify the functional equivalence or evaluate key properties before use to ensure consistent performance or interchangeability.
This document includes a PDF version of every drug monograph in the following structure:
Each Monograph PDF Contains:
- Definition
- Identification
- Assay
- Impurities
- Specific Tests
- Additional Requirements
How to search United States Pharmacopeia 48 - NF 43 (USP 2025) for Free
Option 1: Search Using Google
Step 1: Open Google Search.
Step 2: In the Google search bar, enter the following keywords: trungtamthuoc.com + substance/monograph name + USP
Example: trungtamthuoc.com Agar USP
Step 3: Press Enter or click the search icon.
Step 4: The list of links related to the search keywords will appear. Click on the link that matches your search needs.
This method is suitable when you want to quickly access a specific monograph.
Option 2: Search by Alphabet (A-Z)
Step 1: Access the USP search page via the link: https://trungtamthuoc.com/usp
Step 2: In the left panel, identify the content section you want to search:
- General Chapter
- Monographs
- USP Monographs
- Reagents NF
Step 3: The monographs are grouped by content sections and sorted by alphabetical order. Click on the letter (A, B, C, etc.) matching the first letter of the substance or monograph you want to search for.
Example: Click the letter “A” under the Monographs section to find the USP 2025 quality standard monograph for Acetic Acid.
Step 4: In the list displayed on the right, click on the name of the monograph you want to check.
This option is suitable when:
- You already know the name of the substance or monograph.
- You want to browse monographs by alphabetical order.
Option 3: Search by content section
Step 1: Access the USP search page via the link: https://trungtamthuoc.com/usp
Step 2: In each content section (Monographs, USP Monographs, Reagents NF) in the left-side navigation panel, click “See all >>” at the bottom to display the full list of monographs in that section (arranged in alphabetical order).
Step 3: Click on the monograph you want to search for.
This method is suitable when you need to review all monographs within a specific content section of USP 2025.
Option 4: Search Using the Website Search function
Step 1: Access the USP search page via the link: https://trungtamthuoc.com/usp
Step 2: Enter keywords in the search box in the left-side navigation panel, just below the USP 2025 document title (United States Pharmacopeia 48 - NF 43).
Step 3: Enter the name of the substance or term you want to search for (e.g.: “Diazepam”, “Desloratadine”).
Step 4: The list of monographs related to the search keyword will appear. Select the result that matches your search needs.
This method is suitable when:
- You already know the name of the substance or standard you want to find.
- You need to explore all information related to that keyword.
How to read a USP Monograph
Each USP monograph is usually divided into main sections.
You can:
- Quickly navigate to any section by clicking the headings in the “Table of Contents” at the beginning of the article.
- View and download the monograph PDF for free by clicking “DOWNLOAD PDF HERE” at the top right of the article.
Important notes when using USP data on Trungtamthuoc
The data are compiled based on the latest USP version.
The information is for reference only and does not replace official USP documents or professional advice.
Users should compare the content with the original USP sources and are responsible for applying the information in research, manufacturing or professional practice.
