Care Guides

Return to Index Step 1: What is Blood Pressure?Step 2: Take High Blood Pressure Seriously Step 3: What Causes High Blood Pressure?Step 4: Who Gets High Blood Pressure?Step 5: High Blood Pressure is "Silent"Step 6: Diagnosing High Blood Pressure Step 7: Follow-up Office Visits Step 8: Treatment Overview Step 9: Maintain Healthy Habits Step 10: Drug Therapy Step 11: Monitor Your Blood Pressure at Home Step 12: You and Your Doctor are a Team Key Points Glossary

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Drug treatments: ACE inhibitors

Angiotensin Converting Enzyme ("ACE") inhibitors have successfully treated all types of high blood pressure. Many brands are available that are similar in safety and effectiveness.

ACE inhibitors include:

Captopril (Capoten)
Enalapril (Vasotec)
Quinapril (Accupril)
Benazepril (Lotensin)
Lsinopril (Prinivil, Zestril)
Ramipril (Altace)
Perindopril (Aceon)

ACE inhibitors are often recommended as first-line treatment for people with diabetes and kidney damage, heart attack survivors, stroke patients, and those with heart failure, particularly when taken with diuretics. They can also improve a person's odds of surviving after a heart attack and stroke.

Side effects

Side effects are uncommon but may include:

Irritating cough.
Excessive drops in blood pressure.
Allergic reactions.
Although ACE inhibitors can protect against kidney disease, they also cause the kidneys to retain potassium, which can result in arrhythmias (abnormal heart rhythms) or even cardiac arrest if levels become too high. Because of this, they are not generally given with potassium-sparing diuretics or potassium supplements.
One rare but severe side effect -- granulocytopenia -- has been observed, which is an extreme reduction in white blood cells.

Always tell your physician about all of the medications you are taking to make sure there are no potential risks. This includes over-the-counter medications (such as aspirin and ibuprofen) which may have harmful interactions with ACE inhibitors.

Review Date: 4/6/2007
Reviewed By: Glen Gandelman, MD, MPH, Assistant Clinical Professor of Medicine, New York Medical College, Valhalla, NY. Review Provided by VeriMed Healthcare Network.

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