Coversyl (perindopril) 5mg is a medication used to treat high blood pressure (hypertension) and heart failure. It belongs to a class of drugs called ACE inhibitors (angiotensin-converting enzyme inhibitors). It works by relaxing blood vessels, making it easier for the heart to pump blood, which helps lower blood pressure. The typical dosage is usually based on the individual's condition, and it’s important to follow the prescribed dose. Some common side effects include dizziness, fatigue, or a dry cough, though not everyone experiences them.