I am wondering how I may be able to access historical NDC Directory File data?
An example of the type of data I’m looking for would be for NDC Package Code
0002-3004-75, or Prozac Weekly. In the current directory files (as of
2019-06-17), the Product NDC is available as
0002-3004 within the
product file, but there is no associated
package file data. After looking around, I found this resource at hipaaspace.com, which lists all of the information related to this code and notes that this NDC package code is deprecated, which I suspect is why it's not in the current directory files.
I’m interested in the historical data because I’m trying to map NDC package descriptions to the NDC package codes for a trend analysis my team is performing. I took a look at the openFDA API, but it didn’t appear the package code information was available there, either.
The example query I used via the openFDA site is:
but this also shows
Again, this is only provided as an example. I'm interested in obtaining the NDC Package Code for all codes in the
package file that are also contained in the
product file, whether the package code is deprecated or not.