Overview

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.

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© Therapeutic Research Faculty 2020.