When will botox's patent expire?

There isn’t a single “ Botox patent” expiration date. Botox (onabotulinumtoxinA) is covered by a whole family of patents and regulatory protections that cover different aspects (the toxin itself, formulations, devices, methods of use, etc.) in multiple jurisdictions. Because of that, expiry dates vary by patent and by country. In practice:

- The core toxin/composition patents in many major markets have expired or are near expiry, but there can still be patents on specific formulations, combinations, or uses that last longer in certain places.
- In biologics, there is also regulatory exclusivity (data/market protection) that can delay competition even after patent expiry. The length and availability of this protection differ by country (for example, the US and the EU have different rules).

If you’d like a precise answer for a specific country and for a specific aspect (core toxin patent vs. a particular use or formulation), I can look up the current status and give you the expiration dates.

Tell me:
- Which country or region you care about (US, EU, UK, Canada, etc.)
- Whether you want the core toxin patent, a specific formulation, or a use/patent type (e.g., cosmetic use, migraine indication, delivery method)

I can then pull the relevant patent family data and give you the expiration dates. If you’d prefer, I can also show you how to look this up yourself in Google Patents or Espacenet.