Risperdal generic risperidone patent expiry?

Patents for Risperdal (risperidone) are country‑ and patent‑specific. There isn’t a single global expiry date. In many places the main composition patent has expired, but there can be other patents (e.g., methods of use, formulations) and regulatory exclusivities that affect when generics can enter.

If you tell me the country (e.g., United States, United Kingdom/EU, India, etc.), I can give a more precise answer and, if helpful, point you to the official patent listings (e.g., FDA Orange Book for the US, Espacenet/European Patent Office for Europe). I can also outline typical timelines and how to check exact expiry dates.