Transcription
You may be taking warfarin if you're at risk of a stroke or have heart valve disease or atrial fibrillation (AF for short).
Warfarin is an anticoagulant, which is known as a blood thinner. This is because it makes your blood less likely to clot and cause life-threatening blockages in your blood vessels, such as a stroke or a clot that has traveled to the lung.
For a blood clot to form, you need vitamin K. This is produced by the liver and makes blood cells and platelets stick together and form a seal. Warfarin works by interfering with the production of vitamin K. This means blood cells don't stick together as quickly, reducing the risk of life-threatening clots forming.
If you receive a hard blow or deep cut to your body, you may notice that you'll bruise more easily and that it will take longer for a cut to stop bleeding.
Before you stop or change any medication, even if you're worried about side-effects, talk to your GP first, as changing or missing a dose could harm your health.
For more information about warfarin, visit bhf.org.uk/warfarin.