# National Drug Data File (NDDF)

> FDB MedKnowledge, formerly National Drug Data File (NDDF) Plus Source Vocabulary FDB...

- Page: https://library.schematica.io/model/fb9bca21f3374b5586173b91f2380de3
- Model type: Ontology
- License: Commercial
- Access type: Premium
- Access method: Download
- Model size: Huge
- Formats: UMLS
- Domains: Healthcare
- External link: https://bioportal.bioontology.org/ontologies/NDDF
- Contact: First DataBank Customer Support (cs@firstdatabank.com)
- Listed in library: 2025-06-12
- Last updated: 2025-09-10

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | NDDF |
| Description | FDB MedKnowledge, formerly National Drug Data File (NDDF) Plus Source Vocabulary<br><br>FDB MedKnowledge encompasses medications approved by the U.S. Food and Drug Administration, and information on commonly-used over-the-counter and alternative therapy agents such as herbals, nutraceuticals and dietary supplements. |
| Format | UMLS |
| Categories | Health |
| Groups | Unified Medical Language System |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 32,611 |
| Individuals | 0 |
| Properties | 6 |
| Max Depth | 7 |
| Max Child Count | 0 |
| Average Child Count | 0 |
| Classes With One Child | 0 |
| Classes With More Than 25 Children | 0 |
| Classes With No Definition | 32,611 |

## Projects using NDDF

- [Socrates MD](https://bioportal.bioontology.org/projects/Socrates_MD)

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Source: https://library.schematica.io/model/fb9bca21f3374b5586173b91f2380de3