Warfarin is a type of medicine known as an anticoagulant, or blood thinner. It makes your blood flow through your veins more easily. It is commonly used in the treatment of Atrial Fibrillation.
If you take Warfarin you will need to have the dose checked on a regular basis. Your nurse will confirm what this period needs to be. These checks, called INR, are pre-bookable appointments which can be booked by telephoning the practice or contacting the reception.
You can read more about Anticoagulants, including what they are used for and how Warfarin monitoring is carried out.