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NCI Drug Dictionary


The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

Tips on Looking Up a Drug

  • In the search box, type the name or part of the name of the drug/agent you are looking for and click the “Go” button.
  • You can use the generic name (e.g., doxorubicin), U.S. brand names (e.g., Rubex), NSC number, chemical structure names, or other names to find the drug.
  • Click on a letter of the alphabet to browse through the dictionary or click on "All" to see a listing of all drugs in the dictionary.
  • Change the search from "Starts with" to "Contains" to find all drugs in the dictionary that include a word or set of letters or numbers (e.g., "rubicin" to find daunorubicin, doxorubicin, and epirubicin).
  • Use the Help icon icon to get more help.
  • The search box has an autosuggest feature. When you type three or more letters, a list of up to 10 suggestions will pop up below the box. Click on a suggestion with your mouse or use the arrow keys on your keyboard to move through the suggestions and then hit the Enter key to choose one.
  • Using the Escape key or clicking "close" within the autosuggest box closes the box and turns off the feature until you start a new search.
  • Some drug entries include a Patient Information button that links to a drug information summary page.
Information in the NCI Drug Dictionary is from the NCI Thesaurus, which is produced by NCI's Enterprise Vocabulary Services. Each drug entry includes a link to additional information available from the full NCI Thesaurus database, which contains many drugs and other terms not included here.