Nedsat nyrefunktion - Sammenlignet med patienter med normal nyrefunktion (kreatininclearance > 80 ml/ min), der gennemgik ortopædkirurgi og fik 2, 5 mg fondaparinux en gang daglig, er plasmaclearance 1, 2 til 1, 4 gange lavere hos patienter med let nedsat nyrefunktion (kreatininclearance 50- 80 ml/ min) og gennemsnitligt 2 gange lavere hos patienter med moderat nedsat nyrefunktion (kreatininclearance 30- 50 ml/ min).
Renal impairment - Compared with patients with normal renal function (creatinine clearance > 80 ml/ min) undergoing orthopaedic surgery and receiving fondaparinux 2.5 mg once daily, plasma clearance is 1.2 to 1.4 times lower in patients with mild renal impairment (creatinine clearance 50 to 80 ml/ min) and on average 2 times lower in patients with moderate renal impairment (creatinine clearance 30 to 50 ml/ min).