🆚 What’s the Difference Between These Two NDCs?
Got two versions of the same medicine and want to know how they really compare? Drop in both NDC
numbers and we’ll put them side by side — who makes each one, what the pill looks like, the inactive
ingredients inside, gluten and allergen flags read straight off the FDA label, and what pharmacies actually pay.
You’ll find the NDC on the bottle, the box, or your pharmacy label — or look one up with our
NDC Lookup.
Allergen & sensitivity flags we look for
Major food allergens
We scan for
wheat,
milk protein, egg, fish, crustacean shellfish,
FDA-listed tree nuts,
peanut, soy, and sesame.
Other things people react to
Lactose, sulfites, named FD&C colors, alcohol/ethanol, aspartame/phenylalanine, and gelatin or
lecithin when the source isn’t spelled out.
We only go by what the FDA label actually says — the exact-product ingredient list plus any
clear content statement.
We don’t guess from pill color or missing text, and this is never a “free-from” claim. Drug labels also aren’t
held to the food-allergen labeling rules, so always confirm a serious allergy with your pharmacist.
When this comes in handy
💊 “My refill looks different” A new manufacturer usually means a different-looking
pill and different fillers. Put last month’s NDC next to this month’s and see exactly what changed — and what didn’t.
🌾 Avoiding gluten or an allergen See the inactive ingredients and any label statements
side by side — gluten grains, the major food allergens, lactose, dyes, sulfites, and more — so you can pick the one that fits.
🏷️ Two “identical” generics Same drug, same strength, two makers. See who actually makes
each, what each pill looks like, and what pharmacies pay for them (NADAC).
Find an NDC on the bottle, your pharmacy label, or with the
NDC Lookup.
📚 Where This Data Comes From
🏛️FDA NDC Directory (openFDA)
Product identity — names, active ingredients, strength, dosage form, route, labeler, package descriptions and marketing status. Re-synced weekly from the FDA’s bulk file.
🏷️FDA Labels via DailyMed (NIH)
Package photos, pill appearance (color/shape/imprint), matched inactive ingredients, and explicit allergen or gluten content statements—read from each product’s current structured product label (SPL), refreshed continuously with a full re-sweep every 28 days.
💲CMS NADAC
The National Average Drug Acquisition Cost — the benchmark price pharmacies pay, from the CMS weekly file.
🔎See Also
Every NDC’s full detail page lists all sources and update times — open either product’s page above, or start at the
NDC lookup.
Informational only — not medical advice. Never switch, split or substitute a medicine based on this page alone;
your pharmacist can confirm whether two products are interchangeable for you.
