Origin and Etymology of tush. Middle English tusch, from Old English tÅ«sc; akin to Old Frisian tusk tooth, Old English tÅth tooth. First Known Use: before 12th century.
The leading cause of extrapyramidal syndrome is psychiatric medication. Antipsychotic drugs and some drugs used to treat depression commonly cause extrapyramidal symptoms. Patients who take dopamine blockers can also develop this condition.
Drug-induced extrapyramidal reactions. Parkinsonism monotherapy: initially 100mg twice daily, may increase after 1â2 weeks by 100mg daily. Serious associated illness or high doses of other antiparkinson drugs: 100mg once daily, may increase after 1 to several weeks to 100mg twice daily; max 400mg/day in divided doses. Extrapyramidal disorders: 100mg twice daily; max 300mg/day in divided doses. Renal dysfunction: reduce dose; see literature.