Talk to General Physician on Dementia, Anger, Uncontrolled Urination

My father has been suffering from this disease for the last 5-6 years. Sitting in his house, he says let's go home. He often leave the house and we bring it back with great difficulty and in the meanwhile he get angry and sometimes even beat us. Urine is often out of control. Get very angry. Old things (boyhood) are remembered and recent events are forgotten and so are our names. Sleep is often disturbed. Please guide