Phenindione uncommon vitamin K antagonist
Abstract We would like to bring to your readership?s attention to the drug phenindione We came across this drug during a COVID 19 pandemic phone triage at our dental hospital A 48 year old was referred for the management of a right sided facial swelling related to a carious unrestorable upper right molar She had a complex medical history, including rheumatic fever, total kidney failure with regular dialysis and was anticoagulated with phenindione following a tricuspid valve replacement as she was allergic to warfarin When checked, her International Normalized Ratio (INR) was eight, likely due to untreated dental infection