Tired, depressed...

I didn't get home until after 10 p.m. last night because of rehearsal.  DH seemed so depressed.  He says he's weak and tired.  Says he slept most of the day.  Says he's just not sure he's going to make it.  When he talks like that, I'm not sure either.  I dropped off the a/d prescription, but he hasn't picked it up yet.  What happens when you're too depressed to pick up your prescription for anti-depressants?  (I'm going to stop by the drugstore tonight on my way home from work.)