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Medications and Drugs

Brand Names:

Generic Name: black haw (Pronunciation: black HA)

What is black haw ()?

The use of black haw in cultural and traditional settings may differ from concepts accepted by current Western medicine. When considering the use of herbal supplements, consultation with a primary health care professional is advisable. Additionally, consultation with a practitioner trained in the uses of herbal/health supplements may be beneficial, and coordination of treatment among all health care providers involved may be advantageous.

Black haw is also known as blackhaw viburnum, cramp bark, sheepberry, shonny, sloe, sloe-leaved viburnum, stagbush, sweethaw, American sloe, king's crown, sheep berry, snowball, tree stagbush and others.

Black haw has been used to ease the symptoms of menopause and menstrual discomfort. Black haw has also been used for false labor pains and in threatened miscarriage. In addition, it has been used to lower blood pressure in hypertension and as an anti-spasmodic the treatment of asthma.

Black haw has not been evaluated by the FDA for safety, effectiveness, or purity. All potential risks and/or advantages of black haw may not be known. Additionally, there are no regulated manufacturing standards in place for these compounds. There have been instances where herbal/health supplements have been sold which were contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.

Black haw may also have uses other than those listed in this product guide.

What are the possible side effects of black haw ()?

Although rare, allergic reactions to black haw may occur. Stop taking black haw and seek emergency medical attention if you experience symptoms of a serious allergic reaction including difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives.

Large doses of black haw have been reported to cause

  • nausea,
  • dizziness,
  • seizures,
  • visual disturbances,
  • reduced pulse rate, and
  • increased sweating.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about black haw ()?

Black haw has not been evaluated by the FDA for safety, effectiveness, or purity. All potential risks and/or advantages of black haw may not be known. Additionally, there are no regulated manufacturing standards in place for these compounds. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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