How Is Coumadin Dosed?

How is Coumadin dosed?

The intravenous dose of COUMADIN is the same as the oral dose. After reconstitution, administer COUMADIN for injection as a slow bolus injection into a peripheral vein over 1 to 2 minutes. COUMADIN for injection is not recommended for intramuscular administration.

When do you use bridging anticoagulation?

After warfarin is stopped, 5 to 6 days before surgery (to allow sufficient time for its anticoagulant effect to wane), bridging anticoagulation is started 3 days before surgery, with the last dose given 24 hours before surgery.

Is 15 mg of Coumadin too much?

It is generally believed that doses between 2 and 10 mg daily will be adequate for most patients. While higher than average, 10 mg per day is not an extraordinarily high dose of warfarin, nor is it an uncomfortably high dose for individuals whose diets are high in vitamin K, such as vegetarians.

When should I stop bridging warfarin?

Warfarin should be stopped 5 days before surgery. The main decision is whether to give bridging anticoagulant therapy with full treatment doses of low molecular weight heparin (LMWH) or, less commonly with unfractionated heparin (UFH) once the INR is less than 2.0.

What is the therapeutic INR range on warfarin?

An INR range of 2.0 to 3.0 is generally an effective therapeutic range for people taking warfarin for disorders such as atrial fibrillation or a blood clot in the leg or lung. In certain situations, such as having a mechanical heart valve, you might need a slightly higher INR.

What are the half life and protein binding for warfarin?

CLINICAL PHARMACOLOGY Half-lives of these clotting factors are as follows: Factor II – 60 hours, VII – 4 to 6 hours, IX – 24 hours, and X – 48 to 72 hours. The half-lives of proteins C and S are approximately 8 hours and 30 hours, respectively.

Why do you bridge Coumadin with Lovenox?

The intent of bridge anticoagulant therapy is to minimize both the risk of thromboembolic events and the risk of bleeding during the peri-operative period.