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.
Extrapyramidal syndrome commonly causes noticeable involuntary movements in the neck and head. The most common cause of extrapyramidal syndrome is an adverse reaction to antipsychotropic medication. A person may suffer from extrapyramidal syndrome as a result of a head injury.