Klin Farmakol Farm. 2012;26(3):135-138
Rivaroxaban is an oral selective, direct factor Xa inhibitor. It has well predictable pharmacodynamics and pharmacokinetics. After oral
administration is well absorbed, bioavailability varies between 80 and 100 %. It is from 92 to 95 % bound to plasma proteins, an average
volume of distribution is 50 liters. The main metabolizing systems are cytochromes P450 3A4 and 2J2. It is excreted mainly via kidneys,
about one third of the administered activity being excreted unchanged, primarily by tubular secretion. The remaining two thirds are
excreted as inactive metabolites via the urine and bile. Mean terminal half-life in younger individuals is 5 to 9 hours, and 11–13 hours
in older individuals. Rivaroxaban pharmacokinetics is minimally affected by age or sex of the patient, and even extremely low or high
weight does not cause the need of the dose adjustment, as well as mild-to- moderate renal or hepatic insufficiency.
Published: November 1, 2012 Show citation