What patent covers Rezurock, and when is it expected to expire?
“Rezurock” is the brand name for oprilu k i s t, and the relevant expiration timing depends on which specific patent family you mean (there are usually multiple patents covering different aspects like composition, formulation, or method of use). Patent expiry also differs by country/region because each jurisdiction has its own patent terms and possible extensions.
The provided information does not include the specific Rezurock patent numbers, jurisdictions, or any extension/adjustment details, so an exact expiry date can’t be stated from the available data.
Does Rezurock have more than one “expiry date” (patents vs. exclusivity)?
Even after the main patent term ends, drug access can still be limited by other legal protections such as:
- Other patents in the same family (often overlapping and expiring later)
- Regulatory exclusivities (which can extend market protection even if a patent expires)
Without the underlying patent or exclusivity details, the full timeline for “when Rezurock is no longer protected” cannot be determined from the provided information.
How can I find the exact Rezurock expiry date you need?
To pin down the answer precisely, you’d typically need:
1. The country (US, EU, UK, etc.)
2. The active ingredient and the exact patent family you care about (composition vs. method, etc.)
3. Whether there were any term adjustments or supplementary protection (EU-style) that affect the final date
If you share the jurisdiction (e.g., “US” or “EU”) or the patent number you’re looking at, I can translate that into the expected expiry date based on the term rules tied to that specific patent.
What if you’re asking about generics/biosimilars—when can they enter?
Generic entry timing depends on:
- Whether a generic applicant can rely on patent status (and which patents are still in force)
- Whether any patents are delayed by litigation or settlements
- Whether any regulatory exclusivities still apply
You’d need the same patent/exclusivity inputs above to give a concrete “earliest possible entry” date.
Sources
No sources were provided with the question, so I can’t cite any information about Rezurock patent expiration dates.