it's all too easy to rationalize not doing anything unless there's someone in your life with sufficient clout to drag you to a doctor and make you take the drugs he prescribes
That's what I did this go-round, as I finally realized how low he was sinking and how long this bout had been going on. [It's been so gradual a decline that it was hard to notice until it got pretty bad.] Then *I* made the appointment for him (he was somewhat upset that I did so) and accompanied him to the doctor, and he's now starting on an additional med to see if that helps.