Final answer:
Zestril (lisinopril) is used to treat high blood pressure and heart failure. It functions by relaxing blood vessels to lower blood pressure and improve heart function. Other similar ACE inhibitors are also used for treating various cardiovascular conditions.
Step-by-step explanation:
Zestril, which is a brand name for the drug lisinopril, is commonly used to treat or improve symptoms of cardiovascular conditions including high blood pressure and heart failure. This medication falls under a class of drugs known as ACE inhibitors, which stands for angiotensin-converting enzyme inhibitors. ACE inhibitors work by relaxing blood vessels, which helps to lower blood pressure and can improve the efficiency of the heart. Alongside the use of Zestril, other related ACE inhibitors include Benazepril (Lotensin), Captopril (Capoten), and Enalapril (Vasotec), among others. These are also used for similar purposes, such as lowering blood pressure and treating heart failure symptoms. While Zestril is primarily known for these uses, it's important to note that ACE inhibitors may have other indications, such as treating chest pain (angina) due to reduced blood supply to the heart muscle, or specific types of arrhythmias (abnormal heart rhythms).