At least in the UK, sandwiches are the most that pharma reps can use to bribe doctors with... Which is not to say they aren't effective (you'll get butts in chairs at least, no guarantee they will pay any attention to you though).
Damned bribery and corruption act. I could really do with some free holidays and lavish parties. Now it's all branded mugs and that's your lot. Someone offered us free beer and we had to refuse. Oh, the humanity!