I was listening to Dublin Talks on 98FM and there was a discussion about people who had become addicted to Solpadeine, Nurofen Plus etc...They were calling for them to be made so that you can only get them on prescription.
Do you think this is a good idea? I'd say no and that most people can use them without issues. It's the same with alcohol, do we ban it/restrict it because a minority became alcoholics (an argument that was actually brought up on the show)?
In fact, there's a certain percentage of the population that gets no analgesic relief/euphoric relief from codeine as they lack the enzyme CY2PD6 in sufficient amounts. The opposite is true, a minority get too much euphoria and those people might be the ones at the greatest risk for addiction.