Lisinopril is primarily used for what health concern?

Lisinopril is primarily used for managing high blood pressure, making it an effective treatment option for hypertension. As an ACE (angiotensin-converting enzyme) inhibitor, lisinopril works by relaxing blood vessels, which helps to lower blood pressure and improve blood flow. This action is crucial as uncontrolled high blood pressure can lead to severe health complications, including kidney damage, heart disease, and stroke.

While other conditions are mentioned in the options, they are not the primary or appropriate indications for lisinopril. For example, fluid retention is typically managed by diuretics rather than ACE inhibitors. Similarly, seizure control is primarily addressed with anticonvulsant medications, and heart rhythm regulation often involves different types of medications, such as antiarrhythmics. Thus, the focus of lisinopril on high blood pressure management is what distinguishes it as the correct answer in this context.