Aminophylline can be used together with Ambroxol, which is a phosphodiesterase inhibitor and a bronchodilator that relaxes the bronchial tubes, thus relieving bronchoconstriction and spasm caused by various reasons, relieving chest tightness, shortness of breath and dyspnea. Ambroxol, on the other hand, is an expectorant drug and is a mucolytic agent that dissolves the mucous protein component of sputum, making it dilute and easy to emit. It is mostly used for coughing and coughing difficulties due to various reasons, especially for thicker sputum. There are no adverse reactions to the simultaneous use of aminophylline and amiloride, and in clinical practice there is a synergistic effect between the two, which can mutually enhance the therapeutic effect. However, it is recommended not to use them in the same infusion line.