Extrapyramidal symptoms are forms of abnormal body movements that are caused by a blockade of normal dopamine functions in the brain. They occur most commonly as side-effects of certain medications that block dopamine functioning, such as the Typical Antipsychotics, less commonly the Atypical Antipsychotics, and very rarely by antidepressants [ref]. Extrapyramidal symptoms are often found in people with Schizophrenia and Bipolar Disorder who use these medications [ref]. However, these symptoms can also occur in people with Schizophrenia who have never taken any of these medications [ref].