RxNav
A browser for several drug information sources.
Overview
RxNav is a set of tools and APIs developed by the National Library of Medicine (NLM) that allows for browsing and querying multiple drug information sources, including RxNorm, RxTerms, and MED-RT. Its APIs can be used by developers to build drug interaction checking functionality into their own applications. It is not a polished, end-user application but rather a powerful, free data resource for health IT developers.
✨ Key Features
- Drug interaction API
- Normalization of drug names to RxNorm concepts (RxCUIs)
- Retrieval of drug class and mechanism of action information
- Links between different drug vocabularies
🎯 Key Differentiators
- Completely free and publicly funded
- Based on the RxNorm standard, essential for interoperability
- Directly from an authoritative source (NLM)
Unique Value: Provides free, standardized, and authoritative drug interaction and terminology data, lowering the barrier for innovation in health IT.
🎯 Use Cases (3)
✅ Best For
- Used as a foundational data source for numerous academic and commercial healthcare applications.
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Direct use by clinicians for point-of-care decision support (requires technical expertise)
- Patient use for checking personal medications
🏆 Alternatives
While commercial APIs may have more user-friendly features or broader international coverage, RxNav is the standard for U.S. drug terminology and is completely free.
💻 Platforms
🔌 Integrations
🛟 Support Options
- ✓ Email Support
💰 Pricing
Free tier: All features and APIs are free to use, subject to a usage policy.
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