Replied by Art (Tustin, Ca. USA) on 01/05/2013
In reply to, Dan from San Clemente, Ca, while you're waiting for Ted's reply, you might want to do a little research on LDN which some people have found useful for Parkinson's as well as many other health conditions.
http://www.lowdosenaltrexone.org/ldn_and_ai.htm
Scroll down the page to "Parkinson's Disease" for a brief description.
There are many many websites that discuss LDN and specific diseases and the following one happens to mention both Parkinson's Disease as well as Schizophrenia: http://www.fiikus.net/?ldn
Another consideration to help deal with a common co-condition, of osteoporosis, is making sure that his vitamin d serum level (25OH D level) is well within the 30ng/ml-100ng/ml range. The actual serum level is likely more important than the size of the dose as some people simply require more vitamin d to achieve a specific serum level.
http://www.ncbi.nlm.nih.gov/pubmed/22744405
http://www.ncbi.nlm.nih.gov/pubmed/23052606
Vitamin d may also have an association with schizophrenia: http://www.ncbi.nlm.nih.gov/pubmed/22796576
Another consideration might be melatonin: http://www.ncbi.nlm.nih.gov/pubmed/22527998
http://www.ncbi.nlm.nih.gov/pubmed/22220591
Best wishes. Art
