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block enzyme that narrows blood vessels, lowering blood pressure

ACE inhibitors, or Angiotensin-converting enzyme inhibitors, are a class of medications primarily used to treat high blood pressure and heart failure. They work by blocking the enzyme that converts angiotensin I to angiotensin II, a substance that narrows blood vessels and releases hormones that can raise blood pressure. By inhibiting this enzyme, ACE inhibitors help relax blood vessels, lower blood pressure, and reduce the workload on the heart.

Related Terms

• Angiotensin-Converting Enzyme
• Captopril