Some anti-depressants can help. I would contact your family doctor, go in and see him or her together with your wife, and have the doctor help come up with a plan.
God bless you...prayers!
And I would ditto the advice about drug testing and a conversation with her about PETA.
Careful with the anti-depressants. Some are not recommended for people with a history of eating disorders, because alot of them effect appetite and in some cases metabolism.
THat's the worse thing to do in my opinion. A friend of mines son was put on 'anti-depresants' 15 years ago....he was dependent on them and was ALWAYS depressed anyway. Those drugs are over-prescribed. Instead of letting the person work out there problems normally...they give them drugs. Anyway...he committed suicide last month.
and actually be careful with certain anti-depressants ... as some suppress appettites ... others do not (some I think increase the appettite).