Warfarin Dose Calculator

While traditional "Trial and Error" dosing works, genomic-guided dosing reduces the hazard of early over-anticoagulation, particularly in patients with VKORC1 A/A or CYP2C9 *3/*3 genotypes who may be effectively anticoagulated on as little as 0.5 mg/day.

The IWPC algorithm was developed using a global cohort of over 5,000 patients and remains the most validated pharmacogenetic tool for VKA therapy.