ndcd

is a Data Source.

It is part of the OMOP collection.

The FDA National Drug Code Directory is a comprehensive database maintained by the U.S. Food and Drug Administration containing information about finished drug products, unfinished drugs, and compounded drug products. Drug establishments are required to provide FDA with current lists of all drugs using unique three-segment National Drug Code (NDC) numbers. The directory includes prescription and over-the-counter drugs, approved and unapproved drugs, and repackaged and relabeled drugs. The database is updated daily and provides essential drug identification and regulatory information for healthcare professionals, researchers, and regulatory compliance.

Domains

pharmacology, drug discovery, clinical, biomedical

License

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Homepage

ndcd

Repository

Unknown

Infores ID

infores:ndcd

FAIRsharing ID

Unknown

Products

From this Resource
ID Name URL Category Format Description
ndcd.search NDC Directory Search ndc GraphicalInterface http Web-based search interface for the ND...
ndcd.text NDC Database Text File ndctext.zip (10.0 MB) Product txt Downloadable database file in text fo...
ndcd.excel NDC Database Excel File ndcxls.zip (10.0 MB) Product ❔ Downloadable database file in Excel f...
ndcd.api NDC API ndc ProgrammingInterface http REST API providing programmatic acces...
From other Resources
ID Name URL Category Format Description
athena.vocabularies ⚠ Athena Vocabulary Downloads list Product csv Downloadable standardized vocabulary ...

Details

National Drug Code Directory

The FDA National Drug Code Directory is an authoritative database of drug products maintained by the U.S. Food and Drug Administration. It serves as the central registry for National Drug Codes (NDCs), which are unique three-segment numerical identifiers assigned to all drugs and drug packages in the United States.

Key Features

  • Daily Updates: Database is updated daily with new drug registrations and modifications
  • Comprehensive Coverage: Includes prescription drugs, over-the-counter medications, approved and unapproved drugs, and repackaged/relabeled products
  • Multiple Product Types: Covers finished drug products, unfinished drugs, and compounded drug products
  • Public Access: Free access to all data through web interface, downloadable files, and API
  • Regulatory Compliance: Required registration system for all drug establishments

NDC Structure

National Drug Codes use a three-segment format that identifies:

  1. Labeler code: The firm that manufactures, repacks, or distributes the drug
  2. Product code: The specific strength, dosage form, and formulation
  3. Package code: The package size and type

Information Resource ID

This resource has the Information Resource identifier: infores:ndcd

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Created: November 19, 2025 | Last modified: April 10, 2026