DailyMed
Medical & Drug Info No key
AuthenticationNo key
Rate limitNo official public quota published; keep requests modest.
Documentation: dailymed.nlm.nih.gov ยท Checked Sep 13, 2026
About
DailyMed is the U.S. National Library of Medicine's service that publishes official FDA drug labeling. Its free API returns the same information you find on medication inserts: approved uses, warnings, dosage instructions, side effects, ingredients, and packaging. Everything is free with no key and comes straight from the official drug label.
Details
No key needed. You can call it right away.
Auth: No key
Rate limit: No official public quota published; keep requests modest.
Verified: 2026-09-13
Best for: personal developer
Setup
- Paste the example URL into your browser to see drug label results instantly, no signup needed.
- Change drug_name to the medication you want to look up.
- Use the docs page to explore more endpoints for warnings, images, and ingredients.
- Parse the JSON response in your app; no key or login is ever required.
Example
https://dailymed.nlm.nih.gov/dailymed/services/v2/spls.json?drug_name=metformin&pagesize=5Use cases
- Look up the official side effects and warnings for any prescription drug
- Build a medication reference tool with trusted FDA label data
- Show drug packaging images and ingredient lists in a pharmacy helper app