Den initiale eliminationshalveringstid (alfa) er 0, 18- 1 timer (median 0, 34 timer) og den terminale eliminationshalveringstid 1, 9- 9, 1 timer (median 2, 8 timer).
Initial elimination half lives (alpha) are 0.18-1 h (median 0.34 h) and terminal elimination half lives 1.9-9.1 h (median 2.8 h).