Serious adverse reactions are choreiform, dystonic and other involuntary movements, mental changes including paranoid ideation psychotic episodes, depression with/without development of suicidal tendencies and dementia. The less common and less serious side effects are nausea, orthostatic hypotension, bradykinetic episodes, anorexia, vomiting and dizziness. Rarely GI bleeding, duodenal ulcer, hypertension, etc have been occurred.