FDA regulatory guides
These evergreen guides explain U.S. FDA drug regulatory data in plain, administrative terms: how recall classifications and statuses work, how drug-shortage records are structured, what openFDA is, and how to read and verify the official source. They are a reference layer that links into the live record index on this site.
- What Does an FDA Class II Recall Mean?
A plain, regulatory explanation of what a Class II FDA drug recall is, how the classification is assigned, and how to verify a Class II record against the official FDA source.
- FDA Drug Recall Classifications: Class I, Class II and Class III
How the FDA classifies drug recalls into Class I, Class II and Class III, what each administrative tier means, and how to browse and verify records by classification.
- How to Search FDA Drug Recalls by NDC
What the National Drug Code (NDC) is, how it relates to FDA recall data, and how to locate and verify recall records associated with a product identifier.
- FDA Enforcement Reports Explained
What FDA enforcement reports are, which fields they contain, how openFDA exposes them, and how to read and verify a recall enforcement record.
- Drug Recall vs. Market Withdrawal vs. Safety Alert
The regulatory differences between a drug recall, a market withdrawal and a safety alert, and why the distinction matters when reading public FDA data.
- What Does an "Ongoing" FDA Recall Status Mean?
The meaning of the "Ongoing" recall status in FDA enforcement data, how recall statuses change, and how to confirm the live value at the official source.
- What Does a "Terminated" FDA Recall Status Mean?
The meaning of the "Terminated" recall status in FDA enforcement data and how to interpret a concluded recall record in administrative terms.
- How FDA Drug Shortage Records Work
What FDA drug shortage records are, which fields they contain, how the status lifecycle works, and how to read and verify a shortage entry.
- What Does "Current" Mean in the FDA Drug Shortage Database?
The meaning of the "Current" status in FDA drug shortage data and why the live status should be confirmed at the official FDA listing.
- Resolved vs. Discontinued FDA Drug Shortage Status
The difference between "Resolved" and "Discontinued" statuses in FDA drug shortage data and how to interpret them in administrative terms.
- How to Monitor a Manufacturer's FDA Recall History
How to use manufacturer pages and public FDA data to monitor a firm's recall and shortage history as coverage-limited regulatory signals — not quality ratings.
- How to Read an FDA Drug Recall Record
A field-by-field guide to reading an FDA drug recall record: classification, status, identifiers, the recalling firm's reason, and how to verify the source.
- How to Read an FDA Drug Shortage Record
A field-by-field guide to reading an FDA drug shortage record: names, reporting company, status, presentation and availability, and how to verify the source.
- openFDA vs. FDA Source Pages: What Is the Difference?
The difference between openFDA (the FDA open-data API) and human-facing FDA source pages, and how each is used to find and verify regulatory records.
- What Is an FDA Recall Number?
What an FDA recall number is, how it is assigned and used in enforcement reports, and how it helps verify a recall against the official source.
- What Is an FDA Event ID in Drug Recalls?
What an event ID is in FDA drug recall data, how it groups records belonging to the same recall event, and how to use it for verification.
- How Regulatory Affairs Teams Use FDA Recall Data
How regulatory affairs and quality teams use machine-readable FDA recall data for market surveillance and QA, and the limits to keep in mind.
- How Procurement Teams Can Use FDA Shortage Data
How procurement and supply-chain teams can use public FDA shortage data for awareness and planning, treating records as supply signals rather than clinical guidance.
- The Limits of Public FDA Recall Data
The real limits of public FDA recall data — coverage, lag, missing fields — and how to use a coverage-limited dataset responsibly.
- How fdadri Builds Its FDA Regulatory Index
How this site ingests, normalises, hashes and publishes public FDA data, its daily freshness pipeline, and its conservative no-medical-advice editorial posture.