Knowra Pethidine Pethidine Pethidine, also called meperidine, is a synthetic opioid analgesic used to relieve moderate to severe pain. Its active metabolites can accumulate and cause neurotoxicity, especially with repeated dosing or impaired kidney function.
Opioid : A substance that activates opioid receptors to reduce pain and can also cause sedation and dependence. Pethidine is a synthetic opioid whose analgesia chiefly involves mu-opioid receptors.
Analgesia : The reduction or relief of pain through medication, procedures, or other interventions. Pethidine is used for analgesia, though its risks limit routine use in many settings.
Morphine : A naturally occurring opioid analgesic used to treat severe pain. Morphine is a common alternative with no normeperidine-like neurotoxic metabolite.
Otto Eisleb : A German chemist credited with synthesizing pethidine in 1937 while working at IG Farben. Eisleb’s synthesis initiated the development of pethidine as a synthetic analgesic.
Mu-opioid receptor : A G-protein-coupled receptor that mediates many opioid effects, including analgesia, respiratory depression, and euphoria. Activation of this receptor accounts for much of pethidine’s pain-relieving effect.
Labor analgesia : Pain relief during childbirth using pharmacological or nonpharmacological methods. Pethidine has been used during labor, but it crosses the placenta and can affect newborn breathing.
Fentanyl : A potent synthetic opioid used in anesthesia and for severe pain, including in selected chronic-pain settings. Fentanyl is a potent alternative without pethidine’s serotonergic interaction profile.
Paul Janssen : A Belgian pharmacologist and pharmaceutical entrepreneur who developed numerous medicines, including fentanyl. His work on fentanyl helped provide alternatives to older opioids such as pethidine.
Normeperidine : A metabolite of pethidine with stimulant and neurotoxic effects that can accumulate during repeated dosing. This metabolite can cause tremors or seizures, distinguishing pethidine from several other opioids.
Postoperative pain management : The treatment of pain after surgery using medications and supportive interventions. Pethidine was once used after surgery, but safer options often make it less suitable.
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