RxNorm Drug Entity Relations and Interaction Information

RxNav is an application from the U.S. Department of Health & Human Services for navigating RxNorm drug data. It displays relations among drug entities and provides additional information including drug classes, pill images, and drug-drug interactions. The dataset is supported by several drug APIs and was last updated in June 2025.

Use Cases

• Analyze drug-drug interaction networks using the provided relations among drug entities.
• Build a knowledge graph of RxNorm drug entities, linking them by their documented relations.
• Extract and classify drug classes from the structured drug information.
• Retrieve and process pill images associated with specific RxNorm drug entities.

Strengths

• Maintained by the authoritative U.S. Department of Health & Human Services.
• Includes multiple data types: drug relations, classes, images, and interaction data.
• Updated recently, with a last update recorded in June 2025.

Limitations

• Data is provided in HTML format, which is not structured for direct machine processing.
• No tabular column or row count is provided, making the dataset's scale and structure unclear.
• The license is specified only as 'other-license-specified', requiring further investigation for commercial use.

Provenance

Source

U.S. Department of Health & Human Services

Collection Method

Application for navigating RxNorm drug data.

Freshness

Last updated on 2025-06-19.