ACE Inhibitors are a class of medications primarily used to treat high blood pressure and heart failure. They work by blocking the action of the angiotensin-converting enzyme, which helps relax blood vessels, making it easier for the heart to pump blood. This can lead to lower blood pressure and reduced strain on the heart. Common examples of ACE Inhibitors include lisinopril, enalapril, and ramipril. These medications may also be prescribed to protect kidney function in patients with diabetes or other conditions. While generally well-tolerated, they can cause side effects such as a persistent cough or elevated potassium levels.