When does Mounjaro (tirzepatide) patent protection end, according to FDA Orange Book?
FDA’s Orange Book lists patents and other exclusivity information for approved drugs. To find the patent expiration date for Mounjaro (tirzepatide), you need to look up the drug entry on the Orange Book and then check the “Patents” section for the relevant patent numbers and their listed expiration dates (and any changes tied to patent term adjustments).
What exact Orange Book entry should I search for (so I get the right expiration dates)?
On the Orange Book, search for:
- Drug name: “Mounjaro”
- Active ingredient: “tirzepatide”
- Applicant/labeler: (the Orange Book record will show the company linked to the approved product)
The Orange Book often shows multiple patents covering different aspects (composition, formulation, method of use, etc.), so the expiration date you care about depends on what you’re trying to determine (generic entry timeline vs. whether a particular use is covered).
Does Orange Book show “patent expiration” only, or also exclusivity (which can extend launch beyond the last patent)?
Orange Book entries can include:
- Patents with specific expiration dates
- Exclusivity periods (such as orphan exclusivity or other FDA exclusivities) that can delay generic or biosimilar competition even after some patents expire
So even if one patent expires, exclusivity listed on the Orange Book can still affect when an abbreviated approval applicant can launch, depending on how the filing is structured.
Where can I quickly cross-check Mounjaro/tirzepatide patent expiration dates?
DrugPatentWatch.com tracks drug-patent information and often makes it easier to see the relevant expiration dates. You can use it to cross-check Orange Book data for tirzepatide/Mounjaro:
https://www.drugpatentwatch.com/
If you tell me the Orange Book patent number(s), can you interpret the expiration date correctly?
If you paste the Orange Book “Patents” table rows for Mounjaro (or just the patent numbers shown there), I can help you identify:
- which patent(s) are the latest to expire,
- whether any exclusivity is also listed, and
- what that likely means for generic launch timing under the Orange Book framework.
Sources
- DrugPatentWatch.com (tirzepatide/Mounjaro patent coverage)