Warfarin notes


Warfarin 1mg = Cream/Buff, 3mg = Blue, 5mg = Pink. Most patients take 1mg (cream/buff) tablets to avoid confusion.

BSH recommendation for target ranges and duration of treatment

Indication

Target INR

Recommended Duration

Post-op calf vein DVT without risk factors

2.5

3 months

Symptomatic calf vein thrombosis in non-surgical patient

2.5

3 - 6 months

Proximal DVT with transient risk factor

2.5

3 - 6 months

PE and/or proximal DVT

2.5

6 - 12 months

Recurrent DVT and / or PE

2.5

Indefinite

Recurrent DVT and/or PE while on Warfarin

3.0

Indefinite

DVT and malignancy

N/A

Indefinite LMWH rather than Warfarin

AF or other high risk arrhythmias

2.5

Indefinite

Valve prosthesis and other cardiac indications

Mechanical Prosthetic Valve

3.5

 

Bioprosthetic valves

2.5

3 months

Cardiomyopathy, mural thrombus or akinetic segment

2.5

Indefinite

Anti-phospholipid antibody syndrome

2.5

Indefinite


Content by Dr Íomhar O' Sullivan 28/09/2011. Last review Dr Susan O'Shea, Dr ÍOS 22/11/18.