32+ Warfarin Resistance Diagnosis And Therapeutic Alternatives Photographs. Resistance to warfarin has been described as the inability to prolong the prothrombin time or raise the international normalized ratio (inr) into the therapeutic range when the drug is given at normally prescribed doses. Warfarin is rapidly and almost completely absorbed from the whether this approach will increase the efficacy and/or safety of warfarin therapy is uncertain.

Warfarin resistance can be categorized in etiologic terms as.

Findings from the aristotle trialcirculation. Resistance to warfarin has been described as the inability to prolong the prothrombin time or raise the international normalized ratio (inr) into the therapeutic range when the drug is given at normally prescribed doses. Warfarin resistance is a phenomenon that patients need to take much higher than normally prescribed dosage of warfarin to maintain the target therapeutic international normalized ratio (inr) range, or even fail to reach the target inr. Hirsh j, dalen je, deykin d, poller l, bussey h.