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Does Tranexamic Acid & Mefenamic Acid Stop Your Period?

Updated July 18, 2017

If your periods are heavy or uncomfortable, mefenamic acid and tranexamic acid may be prescribed to you in order to decrease your menstrual flow. According to medical website patient.co.uk, tranexamic acid will lessen your menstrual flow but will not decrease the number of days you are bleeding.

Function

Tranexamic acid and mefenamic acid are part of a class of non-steroidal anti-inflammatory drugs, or NSAIDs. Tranexamic acid helps with blood clotting, while mefenamic acid reduces swelling in the uterus, according to the Cytyc article About Heavy Periods.

Effects

Tranexamic acid or aminocaproic can reduce total blood flow by up to 50 per cent, while mefenamic acid can reduce menstrual flow by 30 per cent during the time that it is taken.

Debate

Guy RK Fender conducted a study at the University of Cambridge and found only 4.5 per cent of women were given tranexamic acid to control heavy bleeding, even though this recommendation could prevent hysterectomy in some cases.

Considerations

Although mefenamic acid and tranexamic acid will reduce menstrual flow, they are unlikely to stop your period entirely.

Warning

Tranexamic acid and mefenamic acid can cause upset stomach and gastrointestinal bleeding. Avoid alcohol and painkillers such as ibuprofen while taking either of these drugs. Follow your doctors instructions.

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About the Author

Genevieve Hawkins has been a freelance writer and editor for seven years. She graduated from Bowling Green State University with a bachelor's degree in psychology and studied for her master's degree in social psychology. Hawkins has published articles on both the Internet and in print for Valley Scene Magazine, Infosearch Media, Examiner and Investrend, and she edits corporate transcripts for Factset Research.