I don't think it's a canada/us thing so much as doc to doc variation....my doc was a specialist in psychosis and head of inpatient care....he's used to rapidly stabilizing and releasing patients....his mindset is more like taper up to an effective dose quickly get people stable and adjust later because he's used to working in the hospital...your doc sounds more like he doesn't want to risk overmedicating you...both I think are valid but 3mg is still a pretty low dose so I wouldn't necessarily expect it to work....for moderate psychosis you start at 2-4mg per day for severe 6-10mg per day with haldol. Those are just the day 1 doses like I said they can go up to 30mg....for me when I was tapering up we increased the dose a little each day(risperidone or seroquel) until the voices mostly stopped.