What should you know about TXA for heavy periods?

Tranexamic acid is an antifibrinolytic medicine. It slows the breakdown of fibrin, a protein that helps form a clot, so menstrual bleeding may be lighter. It does not usually change hormone levels or prevent pregnancy. Heavy periods can have several causes, including [Uterine Fibroids](/conditions/uterine-fibroids/), [Adenomyosis](/conditions/adenomyosis/), [Endometrial Polyps](/conditions/endometrial-polyps/), [Perimenopause](/conditions/perimenopause/) or [Polycystic Ovary Syndrome](/conditions/polycystic-ovary-syndrome/).

Take TXA only as prescribed, usually during the days of bleeding, and follow the product instructions for timing and missed doses. Tell the prescriber about a previous blood clot, kidney disease, vision problems, irregular bleeding, pregnancy plans and every medicine you take. Seek advice before combining it with hormonal contraception or another treatment. Ongoing heavy bleeding can lead to [Iron Deficiency Anaemia](/conditions/iron-deficiency-anaemia/), so a clinician may check blood counts and iron stores.

Get urgent help for sudden chest pain, shortness of breath, coughing blood, a swollen painful leg, sudden vision changes, fainting, or bleeding that makes you weak or dizzy. Arrange a review if bleeding remains heavy, occurs between periods or after sex, or changes after menopause; [Endometrial Hyperplasia](/conditions/endometrial-hyperplasia/) is one condition a clinician may need to consider.

Ask whether TXA suits your medical history, how to time each dose, how long to try it, and what improvement to look for. Ask whether you need examination, blood tests or imaging to find the cause of the bleeding.