Without getting into an argument about semantics, technicalities and medical theory (although, I do agree alcoholism is a disease), my point boils down to this:
I do not understand why someone would engage in a behavior knowing of the possibility of an immediate and fatal reaction, unless they were damaged beyond repair - and by that point, should she not be in rehab? Where is the husband here?
I know of some people that say they are recreational cocaine users (Green Shinobi?), but I'm pretty sure they don't combine it with anorexia.