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This is from net doctor......
Femstrual tablets contain the active ingredient tranexamic acid, which is a type of medicine called an antifibrinolytic. It can be used to help reduce heavy bleeding during periods.
During your period you shed the lining of blood and tissue that has built up in your womb in preparation for implantation of a fertilised egg. When you bleed your body forms blood clots to stop the bleeding.
Blood clots are made of red blood cells and platelets bound together with a substance called fibrin. Once they have fulfilled their normal purpose of stopping bleeding, the body dissolves clots by producing another substance called plasmin. Plasmin breaks down the fibrin and allows the clots to break up.
In women who have heavy menstrual bleeding there are higher than normal levels of the enzymes that produce plasmin in the lining of the womb. This causes blood clots in the womb lining to dissolve and increases the volume of blood that is shed with each period.
Tranexamic acid stops the production of plasmin by blocking the action of the enzymes that produce it. This reduces the breakdown of fibrin and stops clots dissolving, which in turn helps to reduce bleeding.
Tranexamic acid can reduce menstrual blood loss by up to 58 per cent.
Read more:
http://www.netdoctor.co.uk/womens-health/medicines/femstrual.html#ixzz2y2cKizWK Follow us: @NetDoctor on Twitter | NetDoctorUK on Facebook
Wombat x