1) Makes sense o.o
2) That's the question.. is it really 'not effective'? As far as I know, some medications worsen the sickness slightly before kicking in. Especially if it's a test medicine that does stuff to the chemical balance in the brain. Overdosing might tip the balance in the other direction, not for the better though. :D Theoretically spoken, not sure if it's correct, you may know better than me. But especially overdosing anti-psychotics can actually kill a person, from what I've heard.
What if these demons are the progressing poisoning and the "bad" end is the end result (permanent brain damage)?
It's a test medicine; the actual dose may be too high to begin with. Or too low - some stuff does weird things with your body if it's low-dosed. Another idea is that the demons "want" to avoid getting "killed" by the drug - thus it'd be effective to a degree, but just not enough o.o Which'd make you right again. So much room for interpretation :D
3) Up to a point, painting seemed to have helped that patient though. He/she depends on it immediately to "calm themselves". Otherwise the demons would've won long ago. Right? Idk much about Schizophrenia, but can it actually worsen to this point? Other than the drug causing it to basically explode into the patient's face. I mean.. somehow it all goes downhill after the pills are taken repeatedly.
4) Oh dear, maybe mobbing at school? Thus that labyrinth thing with *lots* of them around?
:D Also, if you're not the dev, who is? Always thought people could only upload their own stuff on here.. Heh, sorry for being a pest :D