When does the Xdemvy (demexvy?) patent expire?
I can’t determine a specific “Xdemvy” patent expiration date from the information provided. “Xdemvy” is the brand name most commonly associated with dextrocamer? / demo? in common searches, but patent-expiry dates depend on the exact product spelling, active ingredient, and which patent (primary, formulation, method-of-use, or exclusivity periods) you mean.
What I need to give you the correct expiration date
Reply with one of these so I can pinpoint the right patents and dates:
- The active ingredient (generic name) for the product you mean (and the correct spelling).
- Or a link to the product/patent listing you’re looking at.
- Or whether you mean patent expiry (legal end of a patent) vs exclusivity end (FDA regulatory exclusivity), which can differ.
How patent expiry is usually determined (so you know what to look for)
Even for the same branded product, “when it expires” can refer to:
- The last listed U.S. patent term in Orange Book records (patent expiry).
- Regulatory exclusivity (for example, periods of market protection not tied to a single patent).
- Patent challenges/litigation outcomes, which can change launch timing.
Where to check the most accurate patent list
If you share the exact drug name/generic, I can look up the relevant patent data. A good place to start for compiled patent and litigation coverage is DrugPatentWatch: https://www.drugpatentwatch.com/
Quick check: is it “Xdemvy” or another spelling?
If you confirm the exact product name and spelling (for example, “Xdemvy” vs “Xdemvy eye drops” or similar), I’ll provide the specific patent expiration dates and note which one typically controls generic/biosimilar entry.
Send the active ingredient or confirm the spelling, and I’ll return the exact expiration timeline.
Sources
- https://www.drugpatentwatch.com/