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Warfarin
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Dosage and How to Use
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Warfarin
Drug Class:
Commonly Known As:
Category:
Anticoagulant
Marevan®
Adult
Warfarin - Dosage and How to Use
How should Warfarin be used?
Warfarin can be taken with or without food
Take at the
same
time, once daily
DO NOT
miss, double or adjust your dose unless directed by your doctor or pharmacist
What happens when you start Warfarin
You will be given a booklet called Anticoagulation Therapy Record that provides an ongoing record of your blood tests and warfarin dosage
Remember to bring the booklet with you every time you visit Anticogulation Clinic
Warfarin dose is adjusted according to your desired International Normalised Ration (INR) that measures the effectiveness of warfarin and its bleeding risk
Your desired INR range is: _____________________
Blood tests may be required more frequently to determine the appropriate warfarin dose
Your dose may change after each visit depending on your INR result. Your doctor or pharmacist will inform you any dose changes
Inform your doctor or pharmacist of any illnesses, hospitalisation, changes in medication(s) or lifestyle at your next appointment
Inform other healthcare professionals (doctors, dentist, pharmacist) whom you are seeing for other condition(s) that you are on warfarin
What should I do if I miss a dose?
Take it as soon as you remember if it is within 8 hours of your usual time to take warfarin
If it is after 8 hours, skip the dose for that day
Just take your warfarin dose at the usual time the next day
DO NOT
take double doses, unless your doctor tells you to, as this can cause excessive bleeding
Record
the dates on which you missed your dose(s). Inform your doctor at your next appointment
What should I do if I overdose?
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