What should you know about Kalnex tranexamic acid?

Tranexamic acid helps keep a formed blood clot from breaking down too quickly. It may be prescribed for heavy menstrual bleeding or other specific bleeding problems. It does not treat every cause of bleeding, so unexplained, new, or persistent bleeding needs medical assessment rather than repeated self-treatment.

The medicine can be supplied in different forms and strengths. The correct dose and timing depend on the indication, kidney function, other medicines, and medical history. It is not the same as a hormonal contraceptive and should not be assumed to prevent pregnancy.

Use Kalnex only as directed on your prescription or by a clinician, and tell them about previous blood clots, kidney disease, vision problems, pregnancy, or medicines that affect clotting. Do not share tablets or extend a course without advice. For related information, see [Tranexamic Acid](/materials/tranexamic-acid/), [Tranexamic Acid for Heavy Bleeding](/treatments/medical-gynaecology/tranexamic-acid-for-heavy-bleeding/), and [Tranexamic Acid for Melasma](/treatments/medical-dermatology/tranexamic-acid-for-melasma/).

Stop and seek urgent medical help for chest pain, sudden breathlessness, coughing blood, one-sided leg swelling or pain, sudden weakness, or a new vision disturbance. Contact a clinician if bleeding remains heavy, returns unexpectedly, or is accompanied by severe pain, faintness, or possible pregnancy. The medicine can reduce blood loss while an underlying cause still needs diagnosis.

Ask what cause of bleeding is being treated, how and when to take the medicine, how long to use it, which medicines or contraceptives matter, and what symptoms should make you stop and seek help.