What is the definition of Vasoconstriction?

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, drugs, 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.



Taber's Medical Dictionary Online website. www.tabers.com/tabersonline. Accessed March 7, 2019.

  • Condition: Migraines With or Without Aura in Adults
  • Journal: Psychopharmacology bulletin
  • Treatment Used: Lasmiditan
  • Number of Patients: NULL
  • Published —
The study researched the use of lasmiditan in treating migraines with or without aura in adults.
  • Condition: Severe Acute Respiratory Syndrome Coronavirus 2-Induced Acute Respiratory Distress Syndrome
  • Journal: Critical care medicine
  • Treatment Used: Almitrine Infusion
  • Number of Patients: 169
  • Published —
This study evaluated the effectiveness of almitrine (respiratory stimulant) infusion in patients with severe acute respiratory syndrome coronavirus 2-induced acute respiratory distress syndrome (a pandemic infection caused by a coronavirus).