Figure 1: Summary of the step-by-step approach to the management of psychosis in Parkinson’s disease. CBC = Complete blood count; COMT = Catechol-O-methyl transferase; DA = Dopamine; ECT = Electroconvulsive therapy; MAO-B = Monoamine oxidase inhibitor-B; PD = Parkinson’s disease; PD-P = Parkinson’s disease-associated psychosis; rTMS = Repetitive transcranial magnetic stimulation