Sorry for the "fly by", got to run, but if a person refuses taking his or her meds for this disorder, things are pretty much futile in all respects. When my brother use to get that way, unfortunately it ended up him being brought to the hospital, twice by police, this was a long time ago, once he rcvd. a med that worked for him (Lithium) back in the early 70's his life went to what many of us consider normal, and he has stayed with his meds and appts.
Not to sound so gloomy, but without treatment there isn't much hope here. My heart goes out to you, I've seen how this stuff can get
Please take care,
DE