Remifentanil

Remifentanil has a rapid onset and short duration of action, predictable pharmacokinetics / pharmacodynamics, and unlike fentanyl, does not accumulate with repeated or prolonged administration. In this study, predictors of use of remifentanil in surgical patients with impaired hepatic or renal or obesity in the United States, remifentanil was, fentanyl, or the combination.