section name header

Table 65-1

Comparison of the Pharmacologic Properties of the New Oral Anticoagulants

CHARACTERISTICRIVAROXABANAPIXABANEDOXABANDABIGATRAN
TargetFactor XaFactor XaFactor XaThrombin
ProdrugNoNoNoYes
Bioavailability80%60%50%6%
Dosingqd (bid)bidqdbid (qd)
Half-life7-11 h12 h9-11 h12-17 h
Renal excretion33% (66%)25%35%80%
InteractionsCYP 3A4/P-gpCYP 3A4/P-gpP-gpP-gp

Abbreviations: bid, twice a day; CYP, cytochrome P450; P-gp, P-glycoprotein; qd, once a day.