Long before it found its place in the 19th-century Eclectic herbal tradition, Viburnum prunifolium — Black Haw — was used by Cherokee, Creek, and other Indigenous peoples of the American Southeast as a primary remedy for uterine pain and threatened miscarriage. Its bark was so effective at calming uterine spasms that it became one of the most prescribed women's herbs in American herbal medicine during the 1800s, appearing in the U.S. Pharmacopeia from 1882 to 1926.
Black Haw's primary claim to botanical fame is its remarkable antispasmodic action on smooth muscle — most notably in the uterus. It contains scopoletin and other coumarins that appear to inhibit uterine contractions and ease cramping, making it one of the most valued herbs for painful menstruation, uterine tension, and associated low-back discomfort. Beyond its uterine specificity, Black Haw is also used to support overall nervous system relaxation, ease muscle tension throughout the body, and calm the vascular spasm associated with certain types of headache. It is considered a deeply calming, antispasmodic herb — gentle enough for chronic use under an herbalist's guidance. In women's wellness traditions, it has always been a herb of reassurance and relaxation.
For a comprehensive women's menstrual support blend, pair Black Haw with our Red Raspberry leaf for uterine toning, our Motherwort for nervous system and uterine calming, and our Passionflower for deeper muscular and emotional relaxation.
Black Haw contains coumarins and should be used with caution by those on blood-thinning medications such as warfarin. It is traditionally contraindicated during pregnancy except under direct supervision of a qualified midwife or herbalist, as its antispasmodic action could affect uterine tone. Those with aspirin sensitivity should use with care, as Black Haw contains salicin-related compounds. As always, consult a qualified healthcare practitioner before use, especially if you are pregnant, nursing, or taking medications.
* Classic antispasmodic herb — traditionally used to ease menstrual cramps and uterine tension
* Valued in Native American and Eclectic herbal traditions for women's reproductive health
* May help support healthy smooth muscle relaxation throughout the body
* Traditionally used for low-back discomfort associated with menstruation
* Supports overall nervous system calming and tension release
* Historically listed in the U.S. Pharmacopeia as an official medicine
1. Measure 1–2 teaspoons of Black Haw bark per 8 oz of water.
2. Combine with cold water, bring to a simmer, and decoct covered for 20 minutes.
3. Strain and drink warm.
4. Drink 1–3 cups daily as needed for menstrual or muscle support.
5. For menstrual support, many herbalists recommend beginning 2–3 days before expected onset and continuing through cramping.
Blends beautifully with Red Raspberry leaf and Passionflower for a comprehensive cycle support tea.
