Opioid receptors μOR,δOR,κOR and NOPR are all G protein-coupled receptors(GPCRs),which mainly function through G protein and β-ar-restin.Recent studies have found that G protein mediates analgesia,while β-arrestin reduces anal-gesia and is related to the side effects of opioids.Oliceridine is the first biased μOR agonist approved for commerce.It mainly exerts analgesic effect by activating G protein.It has rapid onset of action and reliable analgesic effect.Due to its low activity on β-arrestin,the incidence of side effects is low,comparing to the classic opioid morphine.Oliceri-dine can be safely used in patients with liver or kid-ney insufficiency and its metabolite is inactive.This article summarizes the current progress of pharma-cological research and clinical application of oliceri-dine,aiming to provide reference for the clinical practice of oliceridine.
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