Abstract Drug induced parkinsonism (DIP) is one of the most frequently occurring side effects of dopamine-receptor blocking agents such as antipsychotic (neuroleptic) and antiemetic drugs. It typically presents with extrapyramidal signs, such as slowed movements, reduced facial expression and muscle stiffness. In contrast to Parkinson’s disease, which is caused by a progressive degeneration of pre-synaptic dopaminergic neurons that project from the substantia nigra in the brainstem, DIP is thought to usually occur due to the post-synaptic antagonism of dopamine receptors in the striatum. However, the two conditions can sometimes be clinically indistinguishable, and may even occur together, and thus it can be challenging to make an accurate diagnosis of DIP. It is important to consider DIP in the differential diagnosis of any person with extrapyramidal signs within the context of recent medication changes as the condition is reversible when the offending drug is withdrawn and, without early identification, there is substantial risk of increased morbidity, complications such as falls, and poor quality of life. Recent advancements in cerebral imaging have improved di
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