US Patent 7943667 Potentiating the effect of compound comprising nitric oxide

Treatment of or prophylaxis against the occurrence of pulmonary disorders associated with hypoxemia and/or smooth muscle constriction or infection in the lungs comprises administration into the lung(s) as a gas composition comprising nitric oxide, e.g. ethyl nitrite or nitric oxide, and also administering into the lungs L-cysteine. The pulmonary disorder can be persistent pulmonary hypertension of the newborn to increase SpO2 and decrease systolic blood pressure. In another case administration is to a premature newborn to prophylax against the development of bronchopulmonary dysplasia.