Prozac patent expiration date?

The patent situation for fluoxetine (Prozac) is complex because there are multiple patents (composition, use, manufacturing, etc.) and they vary by country.

- In the United States, the primary composition patent for fluoxetine expired around the early 2000s, after which generic fluoxetine entered the market. Generics appeared in the US in the early 2000s (roughly 2001–2003), but exact dates depend on the specific patent family and any extensions.
- In other regions (Europe, etc.), expiry times also varied by country and by any pediatric or other extensions.

If you want a precise expiration date for a specific patent in a particular country, tell me:
- the country/region, and
- whether you mean the composition patent, a method-of-use patent, or another related patent.

I can then pull the exact date (e.g., via the FDA Orange Book for the US or the European Patent Office databases).