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
E. Gregory Thompson, MD - Internal Medicine & Alan C. Dalkin, MD - Endocrinology
How this information was developed to help you make better health decisions.