Drug labels don't have to say. This free medication checker finds out anyway — in about thirty seconds, with no sign-up.
Not just prescriptions — lip balm, toothpaste and antacids carry FDA labels too. See what you can check, and what doesn't matter.
We pull from four good sources so you don't have to call the manufacturer yourself. Free, no account, no email.
Gluten Screen is a free medication-screening tool that cross-references any prescription or over-the-counter drug against four authoritative sources — DailyMed (the FDA's Structured Product Label repository), the European Medicines Agency, the Plogsted curated list, and the 2024 Mangione pediatric pharmacy NDC analysis — and returns a per-manufacturer verdict on whether the inactive-ingredients list contains gluten, source-ambiguous starches that warrant verification, or nothing flagged.
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Type a drug name or NDC and pick a suggestion. Works with a full NDC
(0002-4462-30), labeler+product (0002-4462),
or just the labeler prefix (58151) from your prescription
bottle.
Tip — for generic drugs that several manufacturers make, add the manufacturer name to filter to just that maker. Try doxycycline lannett or atorvastatin mylan. Without a maker name you'll see one row per manufacturer.
Useful for picking between brand and generic — generics aren't required to use the same inactive ingredients as the brand-name original.
One per line, or comma-separated. Doses and instructions are ignored,
so you can paste straight from a chart —
1. Lipitor 20mg PO daily reads as Lipitor.
Up to 20 at a time.
If this saved you a manufacturer call…
Gluten Screen stays free, sign-up-free, and ad-free thanks to readers who chip in for the VPS. If this tool helped you find an answer today, you can buy me a coffee ☕.
Use this template to ask the manufacturer about gluten content. Their contact info is pulled from the drug label.
If you've confirmed something about a medication directly with the manufacturer, share it. It helps everyone else.
Privacy: only the feedback content is recorded. No personal information is stored.