In a study of women with menorrhagia who took 25,000 IU of vitamin A twice per day for 15 days, 93% showed significant improvement and 58% had a complete normalization of menstrual blood loss.² However, women who are or could become pregnant should not supplement with more than 10,000 IU (3,000 mcg) per day of vitamin A.

Cinnamon has been used historically for the treatment of various menstrual disorders, including heavy menstruation.³ This is also the case with shepherd’s purse (Capsella bursa-pastoris).⁴ 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.⁵ This is also the case with shepherd’s purse (Capsella bursa-pastoris).⁶ 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.⁷ This is also the case with shepherd’s purse (Capsella bursa-pastoris).⁸ 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.

Both vitamin C and flavonoids protect capillaries (small blood vessels) from damage. In so doing, they might protect against the blood loss of menorrhagia. In one small study, 88% of women with menorrhagia improved when given 200 mg vitamin C and 200 mg flavonoids three times per day.⁹ In another study, 70% of women with excessive menstrual bleeding experienced at least a 50% reduction in bleeding after taking a flavonoid product.¹⁰ The preparation used in this study contained 90% diosmin and 10% hesperidin and was given in the amount of 1,000 mg per day, beginning five days prior to the expected start of menstruation and continuing until the end of bleeding for three cycles.

Cinnamon has been used historically for the treatment of various menstrual disorders, including heavy menstruation.¹¹ This is also the case with shepherd’s purse (Capsella bursa-pastoris).¹² 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.¹³ This is also the case with shepherd’s purse (Capsella bursa-pastoris).¹⁴ 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.¹⁵ This is also the case with shepherd’s purse (Capsella bursa-pastoris).¹⁶ 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.

Both vitamin C and flavonoids protect capillaries (small blood vessels) from damage. In so doing, they might protect against the blood loss of menorrhagia. In one small study, 88% of women with menorrhagia improved when given 200 mg vitamin C and 200 mg flavonoids three times per day.¹⁷ In another study, 70% of women with excessive menstrual bleeding experienced at least a 50% reduction in bleeding after taking a flavonoid product.¹⁸ The preparation used in this study contained 90% diosmin and 10% hesperidin and was given in the amount of 1,000 mg per day, beginning five days prior to the expected start of menstruation and continuing until the end of bleeding for three cycles.

In a study of women with menorrhagia associated with the use of an intrauterine device (IUD) for birth control, supplementing with 100 IU of vitamin E every other day corrected the problem in all cases within ten weeks (63% responded within four weeks).¹⁹ The cause of IUD-induced menstrual blood loss is different from that of other types of menorrhagia; therefore, it’s possible that vitamin E supplements might not help with menorrhagia not associated with IUD use.

Among women taking vitex, menorrhagia has reportedly improved after taking the herb for several months.²⁰ With its emphasis on long-term balancing of a woman’s hormonal system, vitex is not a fast-acting herb. For frequent or heavy periods, vitex can be used continuously for six to nine months. Forty drops of the concentrated liquid herbal extract of vitex can be added to a glass of water and drunk in the morning. Vitex is also available in powdered form in tablets and capsules. Thirty-five to forty milligrams may be taken in the morning.

Cinnamon has been used historically for the treatment of various menstrual disorders, including heavy menstruation.²¹ This is also the case with shepherd’s purse (Capsella bursa-pastoris).²² 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.