Using pharmacokinetic parameters for cisatracurium besylate (INN, cisatracurium besilate), we simulated data sets representing 20 administrations (10 intravenous and 10 nonintravenous) with either three (sparse) or 16 (extensive) samples per administration. Simulations were performed twice, with ka values of 0.1 (slow absorption) or 0.3 (rapid absorption) min-1