Fentanyl/Definition

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Fentanyl [r]: Fentanyl is a potent opioid analgesic with a rapid onset and short duration of action.In addition, it is a synthetic strong agonist at the μ-opioid receptors. It is given intravenously for anesthesia and titrated analgesia, but is also used in transdermal and transmucataneous forms for chronic pain management