Where is retatrutide legal?

On this site's national fields, retatrutide is investigational and not approved in the US, not licensed in the UK, not registered in Australia, and not approved in Canada. It is not a legal prescription drug in those four countries. Sellers offering it are offering an unapproved research chemical. This dataset has no state-by-state, province-by-province, or other sub-national legal detail, so 'where' here means those four national classifications only.

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of names, absences, and legal limits. Brand versus molecule, side effects this site's citations did not measure, how long the trials actually ran, what national legal-status fields can say, and why two-compound answers do not scale to a larger stack.