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renin

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 pressure.

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 blood vessels.

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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