Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Guelder rose (Viburnum opulus) has a long-standing history in traditional herbal medicine, particularly for supporting the female reproductive system and the uterus. Historically, Native American and European herbalists have used the bark—often called "cramp bark"—to alleviate menstrual cramps, uterine spasms, and sometimes to help prevent miscarriage. The traditional use is primarily based on its reported antispasmodic properties, thought to relax smooth muscle, including uterine muscle. Folk remedies often included guelder rose as a tea or tincture for women experiencing dysmenorrhea or other uterine discomforts.

However, scientific validation for these uses remains limited. While some phytochemical analyses have identified compounds (such as viburnin and various flavonoids) that could plausibly have muscle-relaxing effects, there are few well-controlled clinical studies in humans to confirm efficacy or safety for uterine support. Animal studies and in vitro research suggest some potential for muscle relaxation, but these findings have not translated into robust clinical recommendations. As such, while guelder rose is traditionally used for uterine support and there is some pharmacological rationale, the evidence base is weak.

In summary, guelder rose's use for uterine support is justified by tradition, but lacks strong scientific backing. Caution is advised, and consultation with healthcare professionals is recommended before use.

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