Your dose may need to be adjusted • You know of any factors which would favour you having a stroke, such as high blood pressure, cardiovascular disorder or blood vessel problems in the brain • You have Parkinson’ s disease or dementia • You are diabetic • You have epilepsy • You are a man and you have ever had a prolonged or painful erection If you experience this while taking RISPERDAL, contact your doctor straight away • You have problems controlling your body temperature or overheating • You have kidney problems • You have liver problems • You have an abnormally high level of the hormone prolactin in your blood or if you have a tumour, which is possibly dependent on prolactin.