Is Zepbound a generic of Mounjaro?
No. Zepbound is not a generic version of Mounjaro. Zepbound and Mounjaro are different branded medicines made by different companies for different U.S. indications, even though they use the same active ingredient: tirzepatide. [1]
Why do people think they’re the same drug?
Because Zepbound and Mounjaro both contain tirzepatide, they can look similar from a patient perspective (same type of medicine and similar dosing). But “generic” has a specific meaning: a generic product is an FDA-approved version of a brand drug that comes after exclusivity/patent barriers and uses the same active ingredient, route, dosage form, and strength. [1]
Will a generic “Mounjaro” or “Zepbound” be available?
A generic would depend on when relevant patents and exclusivities expire and whether an FDA filing is approved. DrugPatentWatch tracks patent and exclusivity information for medicines, including tirzepatide-related products, which can help predict when generics may be possible. [2]
What’s the practical difference for patients?
Even with the same active ingredient, Zepbound and Mounjaro are used for different approved purposes in the U.S., which affects who can receive them and how they’re prescribed and billed.
Sources
[1] https://www.drugs.com/zepbound.html
[2] https://www.drugpatentwatch.com/