@mandrill: Psychiatric medications can result in behavior not anticipated by either the doctor or the patient. A mental health condition might be misdiagnosed, or the patient might react differently to the medication than would the majority of people diagnosed with the same condition.
If someone commits a crime while in a state of mind induced by voluntary ingestion of medicine prescribed to them by a licensed physician, is this a situation covered by this new Supreme Court ruling, by Automatism, by the Intoxication Law, or something else? I'm thinking that the doctor would have zero criminal liability, very limited civil liability, and any criminal charges against the accused would likely never get beyond the pretrial stage.