MedlinePlus Medical Encyclopedia: Vasoconstriction

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Vasoconstriction

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Illustrations	Definition

Illustrations

Vasocontriction

Definition Return to top

Vasoconstriction is the narrowing (constriction) of blood vessels. When blood vessels constrict, the flow of blood is restricted or slowed.

Vasoconstriction may be slight or severe. It may result from disease, medication, or psychological conditions. Medications that cause vasoconstriction include:

Decongestants, including pseudoephedrine
Cough and cold combinations
Caffeine

Medications may be used to increase or reduce vasoconstriction in very ill patients.

Update Date: 1/22/2007

Updated by: Benjamin W. Van Voorhees, MD, MPH, Assistant Professor of Medicine and Pediatrics, The University of Chicago, Chicago, IL. Review provided by VeriMed Healthcare Network.

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