November 26, 2012
Warfarin risks examined
of haemorrhage for older patients taking warfarin are higher than
rates reported in clinical trials, according to researchers.
The study looked at patients over the age of
66 with atrial fibrillation. The
overall risk of haemorrhage over the 13-year study period was 3.8
percent. This is higher than rates previously reported in
controlled trials, which have ranged between one and three
It’s important not to stop taking your medication without talking to your doctor
Senior Cardiac Nurse, Doireann Maddock, said: “There is a
wealth of evidence
to support the use of warfarin
for people with atrial fibrillation.
“However, people who take warfarin should be
monitored closely to make sure their blood does
not become too thin. Monitoring blood thinness closely and ensuring
this stays within a safe range will reduce the risk of
“If you are taking warfarin and have any
concerns, make sure you speak to your pharmacist or GP. It’s
important not to stop taking your medication without talking to
This research was published in the Canadian
Medical Association Journal.