See the DrugPatentWatch profile for fidaxomicin
When does fidaxomicin lose patent protection in the UK?
The UK patent status for fidaxomicin depends on the specific patent(s) covering the drug in the country and on any supplementary protection certificates (SPCs). Patent and SPC end dates are not always the same: an SPC can extend market exclusivity beyond the core patent term.
What should you check in the UK to find the exact end date?
To determine the exact “come off patent” date for fidaxomicin in the UK, you typically need to look up:
- The expiry date of the relevant UK patent(s) for fidaxomicin
- Any SPC expiry date linked to those patents (if one exists)
- Whether there are multiple patents with different expiry dates (often the last one controls practical exclusivity timing)
Why different sources can give different “patent expiry” dates
People often see multiple dates for the same medicine because:
- A core patent may expire earlier, while an SPC extends exclusivity
- Different patents protect different aspects (e.g., composition, formulation, or specific dosing)
- Some references track patent expiry, while others track regulatory exclusivity or data/market exclusivity
If you tell me the brand name or MA number, I can narrow it down
If you share the UK brand name you mean (fidaxomicin is marketed under specific brand(s) in different places) or any UK patent/SPC number you’ve found, I can help translate that into the actual UK “off patent” date for that specific protection.
Sources
No sources were provided with your question, so I can’t cite the UK patent/SPC expiry date for fidaxomicin accurately from this chat.