Bronchial dilatation can use aminophylline, bronchial dilatation is a structural change, is the destruction of the wall of the bronchial tubes, resulting in persistent dilatation of the bronchial tubes, easy to complicate the infection, the formation of chronic suppurative inflammation, the emergence of recurrent coughing, coughing up pus sputum, and even hemoptysis symptoms. Severe symptoms can cause obstruction of the airway, causing chest tightness, shortness of breath, dyspnea and other symptoms. Aminophylline belongs to the theophylline class of drugs, has a variety of pharmacological effects, can diastole bronchial tubes, can be used to alleviate the symptoms of chest tightness and shortness of breath caused by bronchial dilatation. Aminophylline also has some anti-inflammatory effects and, in small doses, can reduce chronic inflammation of the airways in bronchiectasis. Aminophylline also has the effect of excitation of the respiratory center, enhancement of myocardial contractility and diuresis, and can also improve the symptoms of heart failure due to bronchiectasis, caused by pulmonary heart disease.