You may also wish to look at different forms of meditation for schizophrenia. Meditation is much cheaper than medical aproaches. Here is one study that is trying meditation for it.
http://mentalhealthresearch.berkeley.edu/schizophrenia/meditation.html
Here is also a personal story of a man who healed his schizophrenia through meditation.
http://www.successfulschizophrenia.org/stories/cheah01.html