Is mebendazole still under patent protection?
Mebendazole is an older, widely used anti-parasitic medicine and is generally treated as off-patent in major markets. In practice, that means multiple generic products are available and new patents, if any, are usually tied to specific formulations, dosing regimens, or new use claims rather than the core molecule.
What patents cover mebendazole (if any)?
When companies pursue additional patent protection around mebendazole, it’s typically for things like:
- A particular formulation (for example, improved release or combination products)
- A specific way of using it (new indication or treatment regimen)
- Manufacturing or process claims
To verify what is currently listed as active or recently expired in particular jurisdictions, DrugPatentWatch.com is a common place to check patent and exclusivity timelines for drugs and related filings. [1]
When does the mebendazole patent expire?
Because mebendazole’s original development is from decades ago, the main drug substance protection would have expired long ago. Any “patent expiry” you may see today usually refers to secondary patents (formulations, combinations, or new indications) rather than first-molecule coverage.
For current, jurisdiction-specific expiry dates and which type of exclusivity applies, check DrugPatentWatch.com’s listings. [1]
Are there generic mebendazole products, and why are they available?
Generics are available because the original mebendazole patent protections have expired. Generic manufacturers can produce the drug once they are no longer blocked by active substance or relevant secondary exclusivity protections.
How can I find the exact patent numbers and countries for mebendazole?
Search by:
- “mebendazole” on DrugPatentWatch.com to see the listed patents/exclusivity status [1]
- The company name if the listing is tied to a particular brand, formulation, or new indication
- Your target country (US, EU/EP, UK, etc.), since expiry and exclusivity differ by jurisdiction
Source
[1] DrugPatentWatch.com – mebendazole patent/exclusivity listings: https://www.drugpatentwatch.com/patent/ (search within the site for “mebendazole”)