Using Prescriptions in another country - EU /Not EU

[Dark_Ansem]

I have a small doubt: I have a valid prescription (one in which the medicine's cost does not fall on the public health system) for Clenbuterol here where I live (Italy).
I think it would still be valid within the EU (such as in the UK), but I wonder if, for example, I go to Canada or the US and present it (also, for other medicines: I'd convince my doctor to prescribe me AAS, since Clen is forbidden in the US) if they would accept it.

does someone have insight on this?

[DanB]

no hope, i have 3 scripts but at one stage i had several more then that and it was a nightmare whenever i travelled, dosnt matter what they are, its not worth a bolix even inside EU unless you get your doc to for arrange a doc in the country your arriving in to take over from him and perscribe it

[Dark_Ansem]

that sucks! and it's kinda stupid. but thanks