So being totally honest, as you say you are, wouldn't it be be better to suggest Richy continues with his medication as suggested by his G.P, who is far more likely to understand what is going on, rather than by an alcoholic who has never met the chap, nor knows his situation.
Im sure you have experience of depression, of which there are many many kinds, but you dont have experience of Richy's, do you. I mean, diagnosing Richys condition over the internet is a bit like you coming on here and saying your WFP system isn't working and me saying its the fuse, when I havent go a clue about what might be the problem. It could be anything, the fuse might be the last thing to be concerned about.
Suggestions to Richy to come off his medication is a bit like saying to a cancer sufferer that they dont need their radiotherapy. Surely you're expressing that opinion I mentioned earlier when I refered to the alcoholic who thinks he knows everything when in fact he knows nothing?