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Cirrhosis: Vasoconstrictor Medicines for Variceal Bleeding. Cirrhosis: Vasoconstrictor Medicines for Variceal Bleeding. Medicines that constrict small blood vessels and reduce blood flow to the portal vein are used to treat sudden (acute) bleeding from enlarged veins (varices) in the digestive tract (variceal bleeding). Octreotide is the main medicine used in the United States to treat variceal bleeding.
by admin Leave a Comment. Vasoconstriction is the process of constriction of blood vessels, which may result in decrease of flow of blood. Normal blood flow is necessary for carrying oxygenated blood to all parts of the body and when the normal flow is disrupted it may cause various problems.asoconstriction can occur due to medical condition or due to psychological disorder. This condition happens when the small muscles of the walls constrict causing narrowing of blood vessels. Actually this process is exactly opposite condition of vaso-dilation in which the blood vessels enlarge or open widely.