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[bioontology-support] National Drug Data File

Jennifer Leigh Vendetti vendetti at
Fri Mar 25 11:40:34 PDT 2016

Hi Larry,

I owe you an apology as my initial response to you was incorrect.  Due to licensing restrictions, we are not allowed to provide downloads of any UMLS files - either via the BioPortal user interface, or the REST API.

Apologies for the inconvenience.


On Mar 24, 2016, at 10:10 AM, Larry Schmitt <lschmitt at<mailto:lschmitt at>> wrote:


I am attempting to download the file in RDF format but I keep receiving an error.  Below is the URL I am using and the error that I am seeing.  Can you let me know if I am doing something wrong?



"errors": [
     *   "License restrictions on download for NDDF"
  *   "status": 403


On Wed, Mar 23, 2016 at 5:46 PM, Jennifer Leigh Vendetti <vendetti at<mailto:vendetti at>> wrote:
Hello Larry,

I think the closest thing we could provide to what you’re looking for is the ontology source file we use to display information about the NDDF ontology in BioPortal.  The file is available (in RDF Turtle format) for download via our REST API:

Our REST API is documented here:

To use the API, you need an API key which requires that you register for an account on the BioPortal website (  Once you’ve registered for an account, your API key is displayed on your user account page.

Hope that helps.


On Mar 23, 2016, at 8:00 AM, Larry Schmitt <lschmitt at<mailto:lschmitt at>> wrote:


I was wondering if you could help us.  We are looking for some National Drug Codes that are currently not contained in the list handled by the FDA or the available archived list.  After doing some searches we came across your site which seems to contain a good portion of the NDCs that we are missing.

For example we were able to find the 62991115603 NDC in the National Drug Data File portion of your portal (resulting link below).  I was wondering if you would be able to provide us with a file containing information with all the NDCs and Preferred Names in your system.

Example Link with needed information:

Thank you for your time.

Larry Schmitt
bioontology-support mailing list
bioontology-support at<mailto:bioontology-support at>

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