[Dyskinesis after a single dose of thiethylperazine during the first trimester of pregnancy].

A case of a 22-year female patient with poly-symptomatic reversible dyskinetic syndrome following a single thiethylperazine (Torecan) dose is presented. The patient was 10 weeks pregnant. Detoxication abolished extrapyramidal symptoms within 7 hours. Possible mechanism of such an adverse reaction to thiethylperazine is discussed.