Diprophylline is primarily used as a bronchodilator to treat respiratory conditions such as asthma, chronic bronchitis, and emphysema. It works by relaxing the smooth muscles in the airways, making it easier to breathe. Additionally, it is sometimes employed in the management of heart failure due to its ability to improve cardiac output and reduce pulmonary congestion. The compound is also utilized in veterinary medicine for similar respiratory issues in animals. Its mild diuretic effect further aids in reducing fluid retention in certain medical conditions.