OverviewVasoconstriction is constriction or narrowing of a blood vessel. When a blood vessel constricts, the flow of blood is restricted or slowed. Medications may be used to treat vasoconstriction or to cause vasoconstriction.
Review Date 1/16/2021
Updated by: Linda J. Vorvick, MD, Clinical Associate Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.