Reversible drug-induced progressive supranuclear palsy-like presentation: A report of three cases

Abstract

Drugs, such as dopamine receptor blockers or dopamine depleters, produce a functional dopamine-deficient state mimicking parkinsonism, but presentation with a progressive supranuclear palsy (PSP) is a rare manifestation. We report three patients with a PSP-like presentation, with symmetrical parkinsonism, postural instability, and gaze palsy due to drugs, such as metoclopramide, risperidone, and olanzapine, which reversed after drug withdrawal. © 2019 Annals of Movement Disorders.