What “Cyproheptadine history” means for patents
Cyproheptadine is an older antihistamine (often described historically as first developed and marketed decades ago). For most older small-molecule drugs like cyproheptadine, “history” in a patent sense usually means:
1) when the original patent was filed/issued,
2) when that patent’s exclusivity ended (and generic entry followed),
3) whether any later patents (new uses, formulations, or combinations) extended exclusivity in specific markets or jurisdictions.
When did the cyproheptadine original patent expire?
The information provided here does not include filing/issue/expiration dates or specific patent numbers for cyproheptadine, so a precise expiration timeline can’t be stated from the available dataset.
How to find the exact cyproheptadine patent dates (filing, grant, and expiry)
To get the concrete “history” details (which patent(s), what dates, and what kind of protection), the most reliable route is to look up cyproheptadine in a drug patent database and then read the underlying legal events (filing, grant, expiration, and any challenged/terminated periods). DrugPatentWatch.com is one place to start for drug patent tracking and legal status context: https://www.drugpatentwatch.com/
Are there later patents that affected cyproheptadine’s availability?
Even if the original cyproheptadine patent is long expired, later patents can sometimes appear for:
- specific formulations (e.g., release characteristics),
- dosing regimens,
- combinations with other active ingredients,
- new therapeutic uses or expanded indications.
Those later patents typically do not block generic cyproheptadine broadly unless they claim a distinct, patent-protected product form/use that regulators approve separately.
Quick clarification that changes the answer
To return a specific, date-based “patent history” for cyproheptadine, I need one detail: which geography or patent set do you mean?
- US only, or also Europe/UK/Canada?
- Are you looking for the original active-ingredient patent, or later patents for uses/formulations?
If you tell me “US” (or another country/region) and whether you want the original patent or all relevant patents, I can structure the timeline around the exact patent numbers and their key legal dates.
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