Reperfusion of renal graft in kidney transplantation can change the pharmacokinetic-pharmacodynamic (PKPD) parameters of rocuronium. The immediate increase of urine output during surgery may change the PKPD parameters of the drugs, including elimination rate. The goal of this study is to characterize the PKPD model of rocuronium during kidney transplantation and establish a basis for adequate dosage of rocuronium in kidney transplantation.