Cinnamon has been used historically for the treatment of various menstrual disorders, including heavy menstruation.⁴ This is also the case with shepherd’s purse (Capsella bursa-pastoris).⁵ Other herbs known as astringents (tannin-containing plants that tend to decrease discharges), such as cranesbill, periwinkle, witch hazel, and oak, were traditionally used for heavy menstruation. Human trials are lacking, so the usefulness of these herbs is unknown. Black horehound was sometimes used traditionally for heavy periods, though this approach has not been investigated by modern research.

Cinnamon has been used historically for the treatment of various menstrual disorders, including heavy menstruation.⁶ This is also the case with shepherd’s purse (Capsella bursa-pastoris).⁷ Other herbs known as astringents (tannin-containing plants that tend to decrease discharges), such as cranesbill, periwinkle, witch hazel, and oak, were traditionally used for heavy menstruation. Human trials are lacking, so the usefulness of these herbs is unknown. Black horehound was sometimes used traditionally for heavy periods, though this approach has not been investigated by modern research.

Black horehound(Ballotta nigra, Marrubium nigrum) is sometimes used by herbalists to treat nausea associated with motion sickness.⁸ However, there are no clinical trials to confirm its effectiveness for treating this condition.