What other treatment is there for heavy periods

Is there a natural cure for heavy periods?. There was a report today in the Daily Mail which suggests that there may be some natural help, however women suffering with this problem, called menorrhagia, as it is known. Should first visit their GP.
Vitamin A taken twice a day for 15days (25,000IU Dose) may show some help. Also the mineral Iron can help the blood vessels contract, thus helping the body to reduce bleeding around the womb area.
The pain associated with menorrhagia can be helped by using  250-350mg of magnesium each day. Also try using the herb Agnus cactus