Vasoconstriction
Definition
Vasoconstriction is the narrowing (constriction) of blood vessels by small muscles in their walls. When blood vessels constrict, blood flow is slowed or blocked.
Vasoconstriction may be slight or severe. It may result from disease, medicines, or psychological conditions. Medicines that cause vasoconstriction include:
- Decongestants, including pseudoephedrine
- Cough and cold combinations
Medicines may be used to increase or reduce vasoconstriction in very ill people.
References
Taber's Medical Dictionary Online website. www.tabers.com/tabersonline. Accessed March 15, 2023.
Review Date:
2/2/2023
Reviewed By: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Reviewed By: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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