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Cramp bark (Viburnum opulus) - Natural Medicine A-Z
Cramp bark (Viburnum opulus)
Synonyms: American guelder-rose, Caprifoliaceae (family), common guelder-rose, cranberry tree, European cranberry bush, guelder rose, pembina, proanthocyanidins, snowball tree, Viburnum opulus, Viburnum opulus L., Viburnum prunifolium L., viopudial.
Overview Does It Work? Safety How to Use

Cramp bark (Viburnum opulus) is native to Europe, northern Africa, and northern Asia. It has been used throughout the world as an ornamental plant. The bark has traditionally been used for cramps, including menstrual cramps and cramping associated with arthritis. Interestingly, a laboratory study found that viopudial isolated from Viburnum opulus had antispasmodic effects on smooth muscle. However, there is currently insufficient available evidence in humans to support the use of cramp bark for any indication.

These uses have been tested in humans or animals. Safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider.

Many complementary techniques are practiced by healthcare professionals with formal training, in accordance with the standards of national organizations. However, this is not universally the case, and adverse effects are possible. Due to limited research, in some cases only limited safety information is available.

Allergies

Avoid in individuals with a known allergy or hypersensitivity to cramp bark or its constituents.

Side Effects and Warnings

There is no safety information currently available for cramp bark. Use cautiously in patients taking immunomodulators. Use cautiously in patients taking blood pressure altering agents.

Pregnancy and Breastfeeding

Cramp bark is not recommended in pregnant or breastfeeding women due to a lack of available scientific evidence.

Adults (18 years and older)

There is no proven safe or effective dose for cramp bark in adults.

Children (younger than 18 years)

There is no proven safe or effective dose for cramp bark in children.

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