Ramipiril 5mg Tablet is an angiotensin converting enzyme (ACE) inhibitor. It works by reducing stress on the heart and relaxing blood vessel so that blood flows more smoothly and the heart can pump blood more efficiently. Ramipiril 5mg Tablet may cause excessive drowsiness with alcohol. Ramipril is inhibitor used to treat high blood pressure, heart failure, and reduce stroke risk. Learn about its uses, dosage, side effects, and precautions. Find out how ramipril treats high blood pressure (hypertension) and heart failure, and how to take it. NHS medicines information on ramipril – what it's used for, side effects, dosage and who can take it. Ramipril is used alone or together with other medicines to treat high blood pressure (hypertension). High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly.