Vasoconstrictor

Vasoconstrictors are drugs that constrict or narrow blood vessels, resulting in increased blood pressure and improved circulation. They are used to treat a variety of conditions, including high blood pressure, heart failure, and hemorrhoids. They can also be used to reduce blood loss after surgery or to reduce the spread of an infection. They work by constricting the walls of the blood vessels, which decreases the amount of blood that can flow through them. This increases the amount of pressure in the vessels, which can help to improve circulation. Vasoconstrictors can also be used in combination with other medications to treat a variety of other conditions, such as headaches, migraines, and Raynaud's disease.