Morphrine contradicition: craniocerebral injury, bronchial asthma, pulmonary heart disease decompensation, hypothyroidism, cortical insufficiency, prostatic hypertrophy, dysuria and severe liver dysfunction, shock , inflammatory bowel disease. Normally,it's unproper for emphysema. But, The use of it depends on the situation. The role of morphine is to calm patient and relieve the pain.