Vasodilators are agents which affectt he muscles in the walls of blood vessels in order to widen, or dilate, the vessels.
Regular Websites
Produces the definition and indications for use of vasodilators as well as recommended dosages and precautions. - Healthline: Vasodilators
http://www.healthline.com/galecontent/vasodilators
Provides an introduction to how vasodilators work, types of vasodilators, and possible side effects. - How Vasodilator Drugs Work
http://health.howstuffworks.com/medicine/medication/vasodilator-drug.htm
This brief article offers information about vasodilator herbs as well as what drug performance they may interact with and herbal synerby. - Vasodilator
http://home.caregroup.org/clinical/altmed/interactions/Herb_Groups/Vasodilator.htm