What Immediate Steps Should I Take For Violent And Insane Behavior, Intermittent Crying And Loud Shouting In A Diabetic With Hypertension?

Hi, my father is retired banker. He is becoming violent,sometimes crying and shouting loudly .talking insane.already on sleeping pill 10mg still doesn t sleep at night nor at day.trying to beat,Hit. Have a BP problem and diabetes & medication continuing. Need immediate suggestions.