As a tourist, how can I get a prescription filled in US?

Most very likely no because your doctor is not licensed in the state that you are visiting. A local pharmacy will not fill such a prescription. read more

You will need to meet with a US doctor, who is the only person who can legally write a prescription to be filled by a US pharmacy. The doctor, in their consult with you, may take into account the prescription you have from Brazil, however it is their judgement as to whether to write you a US prescription. read more

We will be traveling for 6-9 months throughout Europe and each month I may find myself in a different country. I can't bring enough to last the trip. read more

The only way the US doc can write a prescription that can be filled in Canada is if they are licensed in a Canadian province you are having the prescription filled in or you get a Canadian doc to co-sign the prescription. read more