Final answer:
Aminophylline is a medication used to treat and improve symptoms of cardiovascular conditions like high blood pressure and heart failure, as well as to manage certain irregular heart rhythms. It also acts as a bronchodilator for treating respiratory conditions such as asthma.
Step-by-step explanation:
Aminophylline is commonly used to treat or improve symptoms of cardiovascular conditions, which includes managing high blood pressure, chest pain (angina) due to reduced blood supply to the heart muscle, and certain types of irregular heartbeats (arrhythmias), particularly atrial fibrillation. Furthermore, it is also used to relieve heart failure symptoms, especially in patients who aren't responding well to ACE inhibitors and diuretics. Aminophylline functions as a bronchodilator and is effective in treating asthma and other respiratory conditions by relaxing the muscles in the lungs, which makes it easier to breathe.