Table 1.

List of antidopaminergic medication included in this analysis

Drug	Number of patients on each drug
	Group 1 (n=466*)	Group 2 (n=90*)
On two or more of the below	175	53
Tetrabenazine	188	28
Sulpiride	34	16
Haloperidol	66	19
Olanzapine	156	49
Tiapride	118	27
Risperidone	98	51
Quetiapine	45	8

Group 1: patients on antidopaminergic medication throughout the study. Group 2: patients started on antidopaminergic medications part way through the study.

*Some patients were on more than one of the drugs.