Aminophylline hydrate is primarily used in the treatment of respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), and bronchitis. It works by relaxing the muscles in the airways and improving airflow to the lungs, making it easier to breathe. This compound is often administered intravenously in emergency settings for acute asthma attacks or severe COPD exacerbations. Additionally, it can be used orally for long-term management of chronic respiratory conditions. Aminophylline hydrate also has a role in treating apnea in premature infants by stimulating the respiratory center in the brain. Its diuretic properties may occasionally be utilized in managing certain cases of heart failure. Proper dosing and monitoring are essential due to its narrow therapeutic window and potential side effects.