PT - JOURNAL ARTICLE AU - Alblowi, Mohammed A. AU - Alosaimi, Fahad D. TI - Tardive dyskinesia occurring in a young woman after withdrawal of an atypical antipsychotic drug AID - 10.17712/nsj.2015.4.20150078 DP - 2015 Oct 01 TA - Neurosciences Journal PG - 376--379 VI - 20 IP - 4 4099 - http://nsj.org.sa/content/20/4/376.short 4100 - http://nsj.org.sa/content/20/4/376.full SO - Neurosciences (Riyadh)2015 Oct 01; 20 AB - Tardive dyskinesia (TD) is one of the most serious and disturbing side-effects of dopamine receptor antagonists. It affects 20-50% of patients on long-term antipsychotic therapy. The pathophysiology of TD remains poorly understood, and treatment is often challenging. Here, we present a 32-year-old woman presenting with a 9-month history of TD occurring after risperidone withdrawal, and characterized almost exclusively by tongue protrusion. After being seen by different specialties and undergoing multiple investigations, she was eventually correctly diagnosed with TD by a specialist team and successfully treated with amantadine. Vigilance and awareness of this condition and its risk factors are required to make the correct diagnosis, especially in cases with unusual presentations caused by atypical antipsychotics, and treatment can be challenging.