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Renin is an enzyme produced by the kidneys that helps control blood
pressure. Renin works by activating other chemicals to narrow (constrict) blood vessels,
which increases blood pressure; a decrease in renin levels helps lower blood
Normally, this mechanism keeps blood pressure within a healthy
range. But some people develop chronic high blood pressure (hypertension).
When this occurs, medicines may be used that block the action of renin on
Current as of:
November 14, 2014
E. Gregory Thompson, MD - Internal Medicine & Alan C. Dalkin, MD - Endocrinology
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