Health data · FDA directory
NDC lookup without the guesswork.
Convert a 10-digit National Drug Code to its 11-digit format and inspect the FDA listing's labeler, product and package details. This is factual directory data, not medical advice.
Look up an NDC
This lookup sends the NDC you enter to the FDA (api.fda.gov) through TNAADO's lookup service to fetch the record. TNAADO does not store it.
Result
Enter an NDC to see its normalized code and FDA listing.
How 10-digit to 11-digit NDC conversion works
The FDA's 10-digit NDC is commonly written in one of three segment patterns: 4-4-2, 5-3-2 or 5-4-1. The 11-digit HIPAA/NCPDP format pads the labeler, product or package segment with a zero so every code is 5-4-2. This tool preserves your hyphenated input and shows the normalized 11-digit value.
An NDC listing identifies a submitted product and package. Inclusion in the FDA NDC Directory does not by itself mean FDA approval, clinical suitability, reimbursement eligibility or that the listing is current for a particular pharmacy.
Not medical advice
Do not use this lookup to start, stop or change a medicine. Confirm medication identity, strength and instructions with a pharmacist or clinician. The directory is supplied by labelers and can contain errors or stale listings. Read openFDA's responsible-use notice.