Black Haw
Viburnum prunifolium
A bark traditionally used to relax the uterus and ease menstrual cramps and threatened miscarriage (historically).
Traditional use (indigenous-americas): A bark traditionally used to relax the uterus and ease menstrual cramps and threatened miscarriage (historically).
A bark traditionally used to relax the uterus and ease menstrual cramps and threatened miscarriage (historically).
Active constituents are under study; evidence ranges from traditional use to preliminary human trials.
- A bark traditionally used to relax the uterus and ease menstrual cramps and threatened miscarriage (historically).
Evidence strength: traditional use.
- See the evidence level above
- Contains salicylates and oxalates; avoid with aspirin allergy and kidney stones.
- Pregnant/breastfeeding people without medical advice
Contains salicylates and oxalates; avoid with aspirin allergy and kidney stones.
May interact with prescription medications — review with a clinician if you take any.
Use caution in pregnancy, breastfeeding, for children, and with chronic disease unless cleared by a clinician.
Choose reputable, tested suppliers; correct identification is essential for wild-harvested plants.