What is tranexamic acid?

Tranexamic acid is a synthetic medicine that helps prevent excessive bleeding. It’s called an antifibrinolytic because it slows down the body’s process of breaking down clots that form to stop bleeding.

How it works:
- It blocks a part of the clot-dissolving system (plasminogen/plasmin), so clots that form don’t break down as quickly.

Formulations and common uses:
- Oral tablets (e.g., for heavy menstrual bleeding).
- Injectable intravenous solution (used during surgeries or to treat postpartum hemorrhage).
- Sometimes used topically or as a nasal spray for certain types of bleeding (like nosebleeds) or during dental procedures in people with bleeding risks.

Typical uses include:
- Heavy menstrual bleeding.
- Reducing bleeding during surgery or dental procedures.
- Postpartum or other types of medically managed bleeding.

Safety and cautions:
- It does not dissolve existing clots and should be used under a clinician’s supervision.
- Not suitable for people with active or high risk of blood clots (e.g., certain thromboembolic conditions) unless a doctor says it’s safe.
- May cause side effects such as nausea, vomiting, diarrhea, or headache; rare but serious allergic reactions or blood-clotting problems can occur.
- Kidney function can affect dosing; pregnancy/breastfeeding should be discussed with a healthcare provider.

If you have a specific condition or are wondering about a particular use (for example, heavy periods, dental care, or postpartum care), I can tailor the info and risks for that situation.