Zestril 5mg Tablets – Lisinopril for HypertensionZestril 5mg Tablets Lisinopril for Hypertension Zestril 5mg, containing Lisinopril, is a widely used medication for managing high blood pressure (hypertension) and other cardiovascular conditions. Lisinopril belongs to a class of drugs called ACE inhibitors, which work by relaxing blood vessels, lowering blood pressure, and improving blood flow. This action reduces the workload on the heart and helps prevent complications such as heart attack, stroke,