Seek immediate medical attention if you notice any of the following rare but very serious side effects: yellowing eyes skin, dark urine, severe stomach abdominal pain, persistent tiredness, persistent nausea vomiting. Beneficial Effect of Perindopril Treatment on Primary Endpoint in Predefined Subgroups Size of squares proportional to the number of patients in that group. Placebo-controlled studies in hypertensive patients without regard to attribution to therapy. RxList does not provide medical advice, diagnosis or treatment. Adults who have hypertension are treated with ACE inhibitors, class of drugs that help lower blood pressure by causing the blood vessels to relax and widen. If they continue it is imperative online ghal preskrizzjoni aceon that you contact your doctor immediately. Symptomatic 406 tic Hypotension: As with any antihypertensive therapy, patients should be cautioned that lightheadedness can occur, especially during the first few days of therapy and that it should be reported promptly.