You can buy it over the counter (OTC) in many countries right now, including Mexico.
Do you have anything to back your comment?
https://www.uclahealth.org/news/release/counterfeit-pills-so...
Presumably you mean some sort of copy or clone because Ozempic or Mounjaro are not available over the counter in many countries.
(not that it matters, but our insurance wouldn't cover it)
My understanding is these GLP-1 are rather simple.