Given that Ambien is a prescription drug over on this side of the Pond there's a page or so of paperwork including warnings of side effects both the drug by itself and when it's being used with other things (not just other drugs), that's also on the bottle (much more compact from and type). For example, I've got one of my prescriptions that I need to avoid grapefruit juice because it causes it to be too effective. He was lucky to have enough money to get a very good lawyer., a lot of places over here he would have been in trouble for using his GF's prescription.

Hopefully he gets banned by BA for a fairly long period of time.