Selective serotonin reuptake inhibitor-related extrapyramidal symptoms in autistic children: a case series.

Abnormal movements occur rarely with selective serotonin reuptake inhibitors (SSRIs). This report describes four consecutive autistic children who developed extrapyramidal side effects (EPS) following SSRI exposure. Videotapes, physician notes, and parental interviews were used retrospectively to rate symptoms on the Extrapyramidal Symptom Rating Scale. Findings suggest that EPS is a potential complication of SSRI treatment in autistic children.