Summary
▴ Remifentanil is a new selective μ opioid receptor agonist of higher potency than alfentanil, with pharmacological effects that essentially parallel those of alfentanil and other opioids in this class.
▴ Unlike other opioids, remifentanil is rapidly hydrolysed by nonspecific plasma and tissue esterases: this imparts brevity of action, precise and rapidly titratable effects (due to rapid onset and offset), non-cumulative opioid effects and rapid recovery after cessation of administration.
▴ The onset of action of remifentanil is similar to that of alfentanil, although its offset is considerably more rapid and independent of the duration of infusion. Remifentanil also has a sparing effect on hypnotics and sedatives.
▴ Its brevity of action ensures not only a rapid resolution of adverse effects but also a rapid offset of analgesic effect. Therefore, appropriate postoperative analgesia, when necessary, should be established before discontinuation of remifentanil infusion.
▴ The unique pharmacokinetic profile of remifentanil facilitates ‘real time’ management of intraoperative stress, as well as provision of optimal intraoperative analgesia without compromising recovery for a variety of surgical procedures.
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GlaxoWellcome Inc. RTP North Carolina. Product information: Ultiva (remifentanil hydrochloride).
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Patel, S.S., Spencer, C.M. Remifentanil. Drugs 52, 417–427 (1996). https://doi.org/10.2165/00003495-199652030-00009
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DOI: https://doi.org/10.2165/00003495-199652030-00009