Generic Name: black haw (black HA)
Medically reviewed on February 9, 2018.
What is black haw?
Black haw is a plant also known as Nanny Bush, Stag Bush, Viburno, Viburno Americano, Viburnum, Viorne, and other names.
Black haw has been used in alternative medicine as an aid in treating diarrhea, asthma, menstrual pain, and uterine spasms after childbirth, or to increase urine production, to prevent miscarriage, and for other conditions. However, these uses have not been proven with research.
It is not certain whether black haw is effective in treating any medical condition. Medicinal use of this product has not been approved by the FDA. Black haw should not be used in place of medication prescribed for you by your doctor.
Black haw is often sold as an herbal supplement. There are no regulated manufacturing standards in place for many herbal compounds and some marketed supplements have been found to be 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 be used for purposes not listed in this product guide.
Follow all directions on the product label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.
Before taking this medicine
Ask a doctor, pharmacist, or other healthcare provider if it is safe for you to use this product if you have:
It is not known whether black haw will harm an unborn baby. But black haw may affect the uterus and is considered possibly unsafe to use during pregnancy. Do not use this product without medical advice if you are pregnant.
Black haw may pass into breast milk and may harm a nursing baby. Do not use this product without medical advice if you are breast-feeding a baby.
Do not give any herbal/health supplement to a child without medical advice.
How should I take black haw?
When considering the use of herbal supplements, seek the advice of your doctor. You may also consider consulting a practitioner who is trained in the use of herbal/health supplements.
If you choose to use black haw, use it as directed on the package or as directed by your doctor, pharmacist, or other healthcare provider. Do not use more of this product than is recommended on the label.
Do not use different forms (tablets, liquid, tincture, teas, etc) of black haw at the same time without medical advice. Using different formulations together increases the risk of an overdose.
Call your doctor if the condition you are treating with black haw does not improve, or if it gets worse while using this product.
Store at room temperature away from moisture and heat.
What happens if I miss a dose?
Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra black haw to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while taking black haw?
Black haw can make it harder for your body to absorb calcium, iron, or zinc. Avoid taking black haw at the same time you take a mineral supplement or antacid.
Black haw side effects
Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Although not all side effects are known, black haw is thought to be possibly safe when taken by mouth as a medicine.
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 other drugs will affect black haw?
Other drugs may interact with black haw, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.
- Consult with a licensed healthcare professional before using any herbal/health supplement. Whether you are treated by a medical doctor or a practitioner trained in the use of natural medicines/supplements, make sure all your healthcare providers know about all of your medical conditions and treatments.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Copyright 1996-2018 Cerner Multum, Inc. Version: 3.01.