Vasodilators consist of any substance that widens blood vessels. Vasodilation subsequently decreases resistance to blood flow and lowers blood pressure. [1][2]


  1. Gale Encyclopedia of Medicine. (2008). Vasodilator. The Gale Group, Inc.. Retrieved on 2008-10-01.
  2. unk. (n.d.). Respiratory Disorders Glossary. Retrieved on 2008-10-01.

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