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Find drug equivalents
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Search any drug to see exact generics, same-ingredient alternatives, and therapeutic class peers — all from FDA and NLM data.

Try: lisinopril, metformin, atorvastatin, amlodipine

Four Layers of Drug Equivalency

Exact Equivalents

Generic Substitutes

Same molecule, same strength, same form. FDA Orange Book AB-rated generics that are pharmacy-substitutable.

Same Ingredient

Different Forms & Strengths

Same active ingredient from RxNorm, but different dose form or strength. Same drug, different packaging.

Therapeutic Peers

Same Drug Class

Different molecules with the same mechanism of action from RxClass. Therapeutic alternatives for when the first choice isn't an option.

Community Data

Insurance Coverage

User-reported formulary tier data. See which plans cover which drugs — clearly labeled as unverified community data.

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Patient's insurance denies Drug A? Find an equivalent in one search. No login. No paywall. Just fast, accurate drug equivalency data from FDA and NLM sources.

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