A 60-year-old female patient had been admitted to a hospital for acute transmural infarction. An hour later the patient's contition got worse. She developed progressing dyspnea, dry cough. Respiratory rate - 30/min, heart rate - 130/min, AP- 90/60 mm Hg. Heart sounds were muffled, there was also diastolic shock on the pulmonary artery. The patient presented with medium moist rales in the lower parts of lungs on the right and on the left. Body temperature -36,4°C. What drug should be given in the first place?