Tardive dyskinesia (TD) is an iatrogenic cause that occurs after prolonged use of
antipsychotic and other
dopamine-related medications and is described as repetitive,
involuntary movement of muscles in the body. This case report focuses on an 80-year-old man who presented with a medical history encompassing
dementia,
bilateral blindness,
glaucoma,
hearing loss,
hypertension, and
hypercholesterolemia. He visited the clinic with a complaint of experiencing
visual hallucinations. Investigations, including a CT head and EEG, revealed normal results, and
Risperidone was prescribed. In the subsequent visit,
Risperidone was prescribed again with
Quetiapine and then replaced with
valproate because of no change in symptoms and medication non-adherence. Over time, the patient felt better but started to have orofacial
tremors after three months of discontinuing
antipsychotic medications. For the orofacial
tremors, the patient was prescribed Duetetrabenazine and asked for a follow-up visit. Early recognition and treatment of TD would be beneficial for these patients, and when prescribing, it's important to be aware that they may lead to delayed onset of TD.