54 Hos patienter med nedsat nyrefunktion (kreatinin clearance < 10 ml/ min) versus raske forsøgspersoner fandtes ingen signifikant forskel i den gennemsnitlige eliminationshalveringstid (37, 7 versus 32, 4 timer) eller clearance (21, 2 versus 25, 0 l/ time).
In renally impaired patients (creatinine clearance < 10 ml/ min) versus healthy subjects, there was no significant difference in mean elimination half-life (37.7 versus 32.4 hr) or clearance (21.2 versus 25.0 l/ hr).