Sizodon is the brand name; the name of the medicine is risperidone. It is to be used only in (a) schizophrenia in patients over the age of 13 years, (b) mania in patients over the age of 10 years and (c) behavioural disturbances in dementia in elderly patients, (d) disruptive behaviour disorders in children (more than 5 years old), adolescents and adults with below average intellectual functioning or mental retardation in whom destructive behaviours (e.g. aggression, impulsivity and self-injurious behaviours) are prominent and (e) behavioural disorders associated with autism in children and adolescents. Unless a firm diagnosis of any one of the above conditions has been correctly made, the medicine is not safe. In any case it is not to be given to a 5-year old child.