Epidural Pethidine: Pharmacology and Clinical Experience

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Abstract
Pethidine is an effective epidural opioid for the treatment of acute pain. Its use has been well described in Australian and New Zealand practice, particularly in the field of obstetric anaesthesia. Reported methods of delivery have included bolus injection, continuous infusion and patient-controlled epidural analgesia. Areas of application have included treatment of postoperative pain, labour pain and intraoperative pain. Because of its intermediate lipid solubility, pethidine may have advantages over many other epidural opioids. However, potential for accumulation of norpethidine limits its use to relatively short durations of treatment.