Hi and welcome! Do you know how long he was off his meds for? Did he cut down gradually or just stop? What dosage was he on? For how long?
I know it's horrible to hear, but it's really, really positive that he's talking to you - especially so openly. You must be really close.
Can you offer to go with him to the drs? Ask if he needs anything? Maybe try to go to see him/get him out to yours or something? Help him focus on the positives each day?
Sorry! That post seems just full of questions! Oops lol