thank you for posting the article on psychosis by Dr. Fross. Most experts perts feel that antipsychotic drugs such as mellaril should not be used. This is because they block dopamine and always worsen PD. It is better to lower all PD medications. The drug clozapine is being used a great deal for psychosis, but weekly blood tests are required in the US. To our friends in Canada interested in pallidotomy-Dr. A. Lang directs the program in Toronto. He has had good results. I believe he is still offering them.