Ingredient Type: Botanical
Also Known As: Viburnum opulus, Cranberry bush, European cranberry bush, Guelder rose
Crampbark is a large, flowering bush native to North America. It was used by the Native Americans for reducing swollen glands and to promote urination. It is thought to possess chemicals that decrease muscle spasms.
Crampbark is used in health supplements today to help relieve menstrual cramps.