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Relationship between RxNorm's Branded Pack and Clinical Pack concepts

Vocabulary Users
#1

I had assumed that just as concepts of class Branded Drug map to Clinical Drug, so would Branded Pack map to Clinical Pack. Was my assumption incorrect or am I misforming my queries?

I have tried two ways: using the “Maps to” relationship and the Ancestor to Descendent relationship.

Branded Pack mapped to itself and disavows Clinical Pack as a descendant.

The two work-arounds that I found are:

  1. Map using concept name: clinical pack’s name being a substring of the branded packs.
  2. As both are ancestors to their composite Clinical Drug concepts, map indirectly.
#2

@Pulver:

The relationship is called “Has tradename” and “Tradename of”. Ask the NLM for their choice of naming it. And yes, it is in the hierarchy. The Branded is a descendant of the Clinical, but the min_levels_of_separation between them is 0 (same semantic level).

Essentially, it is exactly the same as the relationships between the other Branded and Clinical concept classes.

1 Like
#3

Thank you!

I see that I need to review the relationships between Branded Pack, Clinical Pack, and Clinical Drug.

t