Tranexamic acid (sometimes shortened to TXA) is a medicine that controls bleeding. It helps your blood to clot and is used for nosebleeds and heavy periods.
If you're having a tooth taken out, using tranexamic acid mouthwash can help stop bleeding.
Tranexamic acid can also help if you have a condition that causes swelling under the skin (hereditary angioedema).
If you have any condition that causes you to bleed more than usual, you may need to take tranexamic acid for a few days before having surgery or dental surgery.
Tranexamic acid is available on prescription as:
- tablets
- liquid – for children and people who cannot swallow tablets
- mouthwash
- injections – usually only given in hospital
Key facts
- You'll usually take tranexamic acid 3 times a day for a few days at a time.
- It can take up to 24 hours for the medicine to work fully.
- You can take the tablets or liquid with or without food.
- Most people do not have any side effects when taking tranexamic acid tablets or liquid.
- Speak to your doctor if you also take the combined contraceptive pill ("the pill"), as there's a very small increased risk of DVT (deep vein thrombosis) with tranexamic acid.