Re: coproxamol
co-proxamol hasn't been banned as such. It's licence has been withdrawn. That means it can still be prescribed by a uk doctor as an unlicenced special providing you were already being prescribed it by your GP.
The main reason why your GP isn't prescribing it for you now is probably twofold:
For the vast majority of folk co-proxamol is no more effective than co-dydramol or co-codamol, and carries much higher side effect / overdose risks.
This is not to say that you don't find co-prox the most effective for you - different painkillers affect people differently.
The other reason is cost. Co-proxamol is now over £20 for 100 tablets. A 100% increase that most doctors don't like having to pay - especially when coupled with clinical data about it being no better than the other stuff.
I would have a sit down and a long chat with your GP to see if they can prescribe it for you again, or possibly even prescribe it to you privately.
Under no circumstances would a .com company be trustworthy to supply you with genuine prescription only medicines without prescription. You would most likely be ripped off, poisoned, have your identity stolen or end up with counterfeit tablets.
To say nothing that a drugs sweep of the postal centre would mean your package getting ripped open after a happy drugs doggie sits down next to it.
“It's not worth doing something unless you were doing something that someone, somewhere, would much rather you weren't doing.”
Terry Pratchett