Cramp Bark Side Effects, Interactions and Warnings

Cramp Bark Side Effects, Interactions and Warnings





  • May reduce blood pressure.

  • Cramp bark has a relaxant effect on the uterus.
    – Uterine relaxant properties of Viburnum. — Jarboe CH, et al. — Nature. 1966 Nov 19;212(64):837.

  • May cause interactions with sedative or blood pressure medications.














last update: March 2014