USP Dictionary Sign up for a 14-day trial

The USP Dictionary of United States Adopted Names (USAN) and International Drug Names is a vital tool for quality control. 


  1. Complete and submit the form (below or to the right). Please note (*) indicates required fields. 
  2. An email containing the trial access code and instructions for accessing the USP Dictionary will be sent after submission. 

With your complimentary 30-day trial, see how the USP Dictionary can help you and your organization avoid medication errors and navigate the complex world of drug naming. This leading reference helps to: 

  • Ensure compliance in product labeling in order to obtain new drug approval and to avoid "misbranded" products. 
  • Reference generic drug names for use in advertising and labeling. 
  • Enable filing of accurate INDs, NDAs and ANDAs.
  • Avoid verbal and written medication errors in reports, correspondence, articles and package inserts.
  • Group drug products into families. 
  • Verify names, chemical structures and compositions.


Sign up for your free 30-day trial.

No credit card information required.