I would like to try a drug that is not available in the UK, but is widely available (under prescription) in the USA, Australia and Canada. The reason it is not available in the UK is cost.
If I travelled to America and saw a Doctor at my own expense, and if they agree that this drug would be appropriate for my condition (it is widely used for my condition abroad where health insurance covers the cost) would/could they prescribe this drug for me and could I then go to a pharmacist and acquire said drug to bring home to the UK. Obviously I'd be covering all costs.
It's not a banned or illegal substance at all, just one that is not prescribed in the UK for my condition.