Enalaprilat dihydrate is primarily used in the treatment of hypertension and heart failure. It functions as an angiotensin-converting enzyme (ACE) inhibitor, which helps relax blood vessels, thereby reducing blood pressure and improving blood flow. This makes it effective in managing high blood pressure and alleviating symptoms associated with heart failure, such as shortness of breath and fatigue. Additionally, it is often administered intravenously in hospital settings for patients who cannot take oral medications, ensuring rapid and controlled management of acute hypertensive episodes. Its use also extends to protecting kidney function in patients with diabetes, as it helps reduce the strain on the kidneys by lowering blood pressure.