Eye drop psychosis in Parkinson’s disease: a cautionary tale
Anticholinergic agents are used in a number of conditions ranging from overactive bladder and bradycardia to travel sickness but side-effects such as hallucinations, impaired memory and restlessness are increasingly recognised, though still underreported in clinical practice. In Parkinson’s disease anticholinergics such as atropine are recommended by NICE for the management of excessive drooling. Dr Ferris et al. present such a case where commencing sublingual atropine drops caused a patient to develop hyperactive delirium and psychosis. They also discuss the subsequent clinical management steps.