<qa>  What is the side effect of morphine?Women scheduled for abdominal hysterectomy needs postoperative pain treatment, i.e. morphine. Unfortunately morphine has side-effect: nausea, vomiting, sedation and dizziness, which is unpleasant for the patients and sometimes keeps them at bed longer time than needed. We investigate in new combinations of analgesics for postoperative pain, hoping to minimize the need for morphine. 