Bois à Quenouille, Boule de Neige, Common Guelder-Rose, Crampbark, Cranberry Bush, European Cranberry-Bush, Guelder Rose, Guelder-Rose, High Bush Cranberry, High-bush Cranberry, Obier, Rose de Gueldre, Snowball Bush, Viburno Opulus, Viburnum opulus, Viorne Aquatique, Viorne Aubier, Viorne Obier, Viorne Trilobée.


Overview Information

Cramp bark is a flowering shrub. It is native to Europe and parts of Africa and Asia. It is also grown in North America and many other parts of the world. The bark of the plant has traditionally been used to relieve cramps. Native Americans also smoked cramp bark as a substitute for tobacco.

Cramp bark is used for cramps, cancer, a disease caused by vitamin C deficiency (scurvy), pain and swelling (inflammation) of the uterus (uteritis), and other conditions, but there is no good scientific evidence to support these uses.

Don't confuse cramp bark with black haw (Vibernum prunifolium), which is sometimes referred to as cramp bark.

How does it work?

There isn't enough reliable information to know how cramp bark might work.


Uses & Effectiveness?

Insufficient Evidence for

  • Cramps.
  • Muscle spasms.
  • Menstrual cramps.
  • Cramps during pregnancy.
  • Cancer.
  • Hysteria.
  • Nervous disorders.
  • A disease caused by vitamin C deficiency (scurvy).
  • Other conditions.
More evidence is needed to rate the effectiveness of cramp bark for these uses.

Side Effects

Side Effects & Safety

When taken by mouth: There isn't enough reliable information to know if cramp bark is safe to use or what the side effects might be.

Special Precautions & Warnings:

Pregnancy and breast-feeding: There isn't enough reliable information to know if cramp bark is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.



We currently have no information for CRAMP BARK Interactions.



The appropriate dose of cramp bark depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for cramp bark. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

View References


  • Nicholson, J. A., Darby, T. D., and Jarboe, C. H. Viopudial, a hypotensive and smooth muscle antispasmodic from Viburnum opulus. Proc.Soc.Exp Biol.Med. 1972;140(2):457-461. View abstract.
  • Ovodova, R. G., Golovchenko, V. V., Popov, S. V., Shashkov, A. S., and Ovodov, IuS. [The isolation, preliminary study of structure and physiological activity of water-soluble polysaccharides from squeezed berries of Snowball tree Viburnum opulus]. Bioorg.Khim. 2000;26(1):61-67. View abstract.
  • Ryzhikov, M. A. and Ryzhikova, V. O. [Application of chemiluminescent methods for analysis of the antioxidant activity of herbal extracts]. Vopr.Pitan. 2006;75(2):22-26. View abstract.
  • Smetankina, P. P. [DISINFECTANT PROPERTIES OF VIBURNUM OPULUS.]. Vestn.Dermatol Venerol. 1963;37:75. View abstract.
  • Smirnova, A. S. and Iadrova, V. M. [Comparative study of the astringent effect of liquid extracts from Viburnum opulus L]. Farmatsiia. 1968;17(4):42-45. View abstract.
  • Zayachkivska, O. S., Gzhegotsky, M. R., Terletska, O. I., Lutsyk, D. A., Yaschenko, A. M., and Dzhura, O. R. Influence of Viburnum Opulus proanthocyanidins on stress-induced gastrointestinal mucosal damage. J Physiol Pharmacol 2006;57 Suppl 5:155-167. View abstract.
  • Nicholson JA, Darby TD, Jarboe CH. Viopudial, a hypotensive and smooth muscle antispasmodic from Viburnum opulus. Proc Soc Exp Biol Med 1972;140:457-61.

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

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