In 9 patients with chronic bronchitis and cor puomonale and in one patient with vascularly pulmonary hypertension the efficiency of 0,04 mug and 0,16 mug Sch 1000 (isopropylatropin,), applicated with metered dose inhaler referring to blood gases and hemodynamics was examined. Inhalation of drug was not followed by any variations either referring to hemodynamic parameters (pulmonary pressure, systemic blood pressure, cardiac output, peripheral resistance) nor to the blood gases. After a dosage as high as eigth time as normal side effects were not found.
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