Mean total body clearances were 102 and 112 l/ h following the first dose for doses of 1.0 mg/ m2 and 1.3 mg/ m2, respectively, and ranged from 15 to 32 l/ h and 18 to 32 l/ h following subsequent doses for doses of 1.0 mg/ m2 and 1.3 mg/ m2, respectively.