Halfnut
I realise its a side issue, but although KC135777 questions your reasons for mentioning it, it is an important point in relation to to the UK Act, although not nessesrily the case in question.
What it clearly shows is like a lot of prescription or perfectly legal drugs, there are often side effects. These side effects can cause people to fall foul of this and the Road Traffic Acts in the UK.
It's not usualy top of peoples thoughts when they are ill, or indeed just taking something to help them sleep, but legal drugs can cause problems!