What should you know about prescription tranexamic acid?

Tranexamic acid slows the breakdown of fibrin, a protein that helps form a blood clot. It may be prescribed for heavy menstrual bleeding or other bleeding situations after a clinician considers your health history. It does not treat every cause of bleeding, and it is different from hormone treatment. Your prescription label determines the dose, timing and length of use.

Take the medicine exactly as prescribed and follow instructions about missed doses. Tell the prescriber if you have had a blood clot, kidney disease, vision problems, seizures, are pregnant or use hormonal contraception. Do not share tablets or use leftover medicine for a new episode without advice. Keep a record of bleeding and any symptoms so your clinician can review whether the treatment is suitable.

Seek emergency help for sudden chest pain, difficulty breathing, coughing blood, one-sided leg swelling or pain, sudden weakness, trouble speaking or a new severe vision change. Contact your prescriber if bleeding remains heavy, returns unexpectedly or you develop troublesome side effects. Severe abdominal pain, fainting or signs of an allergic reaction also need prompt assessment.

What cause of bleeding is this treating, and how should I take it? Is it suitable with my medicines or contraception? What should I do if I miss a dose, and which symptoms could indicate a clot?