Thanks for using DoctorSpring.com for posting your query.
I have gone through your question in detail and I can understand what you are going through.
Its good that all your symptoms have gone down and you are well maintained on 0.5mg risperidon. Its a very very small dose and a negligible one. Coming to your questions proper, HCG can be safely used in patients of schizophrenia. It will not lead to any harm and will not exacerbate the psychotic symptoms. Regarding the beneficial effect, its a bit controversial as some studies have shown some benefit of use of HCG in schizophrenia but the results are not very robust. Still you may give it a try..
Hope this helps,
In case if you have any further query, do let me know.
Dr. Srikanth Reddy