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Antifibrinolytic (clot-stabilising medicine)

Tranexamic Acid: uses, side effects & precautions

Also known as Cyklokapron, Lysteda, tranexamic acid.

Ces informations sont fournies à titre indicatif uniquement et ne constituent pas un avis médical. Consultez toujours un professionnel de santé qualifié pour toute préoccupation médicale personnelle. En cas d'urgence, appelez votre numéro d'urgence local.

What it is used for

  • Heavy menstrual bleeding
  • Reducing bleeding in other situations such as after some surgery or dental work (when prescribed)

How it works

It helps blood clots stay stable rather than breaking down too quickly, which reduces heavy bleeding. For periods, it is taken only during the days of heavy flow.

How it is taken

Taken as a tablet, usually only during the heaviest days of a period, and also available as an injection in hospital settings. Take it exactly as your doctor or pharmacist directs and do not exceed the advised number of days.

No doses here on purpose. The right strength and schedule depend on you — only a doctor or pharmacist should set them. Always follow your prescription and the label.

Common side effects

  • Nausea
  • Diarrhoea
  • Indigestion
  • Headache
  • Tiredness
  • Muscle aches

Serious effects — get help

  • Signs of a blood clot (painful swollen leg, sudden breathlessness, chest pain)
  • Sudden vision changes
  • Severe allergic reaction
  • Signs of a stroke

If a reaction is severe — for example trouble breathing, swelling of the face or throat, or collapse — go to the nearest emergency room now or call your local emergency number. Do not wait for an online consultation.

Interactions to watch

  • Combined hormonal contraceptives may add to clot risk
  • Some clotting medicines and treatments
  • Tell your clinician about all medicines

Who should take care

  • Not suitable if you have had blood clots or have certain clotting or kidney conditions, so give a full history
  • Seek urgent help for any clot or stroke symptoms
  • Used only during bleeding for periods, not continuously
  • Tell your clinician if you have kidney problems, as the dose may need adjusting

Frequently asked questions

Does it stop my period?
No. It reduces how heavy the bleeding is during your period; it does not stop the period itself.
Is it a hormone?
No. It works on blood clotting, not hormones, so it can be an option for those who prefer to avoid hormonal treatments.
When do I take it?
Usually only on the heaviest days of your period, exactly as directed, not every day of the month.
Can I take it with the pill?
Tell your clinician, as combining it with combined hormonal contraception may add to clot risk and needs assessment.
Is Tranexamic Acid safe to take?
For most people it is safe when taken exactly as a doctor or pharmacist advises and as printed on the label. Tell your clinician about your other medicines and health conditions, and seek urgent care for any serious reaction.

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