<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A drug that is used to lower blood pressure. An ACE inhibitor is a type of antihypertensive agent.</n0:def-definition><n0:def-source>NCI-GLOSS</n0:def-source></n0:ComplexDefinition>
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>Any substance that inhibits angiotensin-converting enzyme (ACE), an enzyme that catalyzes the conversion of angiotensin I to angiotensin II. Inhibition of ACE results in a reduction in angiotensin II and angiotensin II-induced aldosterone secretion, causing vasodilation and natriuresis.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>