Blackhaw, Nanny Bush, Southern Black Haw, Stag Bush, Viburno, Viburno Americano, Viburnum, Viburnum lentago, Viburnum prunifolium, Viburnum rufidulum, Viorne Américaine, Viorne à Feuilles de Prunier, Viorne à Manchettes.


Overview Information

Black haw is a shrub that is native to the woodlands of southern North America. People use the root bark and its extracts to make medicine.

Black haw is used for menstrual cramps (dysmenorrhea), asthma, diarrhea, labor pain, and other conditions, but there is no good scientific evidence to support these uses.

How does it work?

Black haw contains a chemical that might relax the uterus.


Uses & Effectiveness?

Insufficient Evidence for

More evidence is needed to rate the effectiveness of black haw for these uses.

Side Effects

Side Effects & Safety

When taken by mouth: Black haw stem bark is LIKELY SAFE for most people when taken in food amounts. Black haw root bark is POSSIBLY SAFE for most people when taken as a medicine.

Special Precautions & Warnings:

Pregnancy and breast-feeding: It is POSSIBLY UNSAFE to use black haw if you are pregnant. It might affect the uterus. There isn't enough reliable information to know if black haw is safe to use when breast-feeding. Stay on the safe side and avoid use.

Aspirinallergy: Black haw contains chemicals called salicylates. There is some concern that these salicylates could trigger an allergic reaction in people with asthma or aspirin allergies.

Kidney stones: Because black haw contains oxalic acid. It might increase stone formation in people with a history of kidney stones.



We currently have no information for BLACK HAW Interactions.



The appropriate dose of black haw for use as treatment 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 black haw. 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


  • Jarboe, C. H., Zirvi, K. A., Schmidt, C. M., McLafferty, F. W., and Haddon, W. F. 1-methyl 2,3-dibutyl hemimellitate. A novel component of Viburnum prunifolium. J Org Chem 1969;34(12):4202-4203. View abstract.
  • Tomassini, L., Cometa, F. M., Foddai, S., and Nicoletti, M. Iridoid Glucosides from Viburnum prunifolium. Planta Med 1999;65(2):195. View abstract.
  • Agriculture Res Svc. Dr. Duke's phytochemical and ethnobotanical databases. Available at: (Accessed 7 July 1999).
  • Chevallier A. The Encyclopedia of Medicinal Plants. London, UK: Dorling Kindersley, Ltd., 1996.
  • Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at:
  • Hoffman D. The herbal handbook: a user's guide to medical herbalism. rev ed. Rochester, VT:Healing Arts Press, 1998.
  • Upton R, Petrone C, eds. Black Haw Bark, Viburnum prunifolium: Analytical, quality control, and therapeutic monograph. American Herbal Pharmacopoeia and Therapeutic Compendium. Santa Cruz, CA: American Herbal Pharmacopoeia. 2000.

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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.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
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