Knowra Fentanyl Fentanyl Fentanyl is a potent synthetic opioid used in medicine for severe pain and anesthesia. Illicitly manufactured fentanyl is also a major cause of fatal opioid overdoses.
Opioid receptor : A cell-surface receptor activated by endogenous peptides and opioid drugs to alter pain, reward, and other functions. Fentanyl produces analgesia and respiratory depression mainly by activating the mu-opioid receptor.
Anesthesia : A controlled state that prevents pain and may reduce awareness or movement during medical procedures. Fentanyl is used as an analgesic adjunct during general anesthesia.
Paul Janssen : A Belgian physician and pharmacologist who founded Janssen Pharmaceutica and developed numerous medicines. Janssen synthesized fentanyl in 1960 while seeking potent, short-acting opioid analgesics.
Opioid epidemic : A public-health crisis of widespread opioid dependence, poisoning, and death. Illicit fentanyl has driven a major rise in opioid overdose deaths in North America.
Morphine : A naturally occurring opioid used to treat moderate to severe pain. Morphine provides a familiar clinical comparison for fentanyl’s potency and duration.
Mu-opioid receptor : A G-protein-coupled receptor that mediates many opioid effects, including analgesia, euphoria, and respiratory depression. This receptor is fentanyl’s principal molecular target.
Transdermal fentanyl : A skin patch that releases fentanyl gradually for ongoing treatment of severe chronic pain. The patch provides sustained delivery for opioid-tolerant patients rather than rapid relief.
Janssen Pharmaceutica : A Belgian pharmaceutical company founded by Paul Janssen, later incorporated into Johnson & Johnson. The company developed fentanyl for medical use and brought it into clinical practice.
Opioid use disorder : A treatable medical condition involving persistent opioid use despite significant harm or impairment. Repeated fentanyl exposure can contribute to this disorder, which has evidence-based treatments.
Oxycodone : A semi-synthetic opioid prescribed for moderate to severe pain. Illicit fentanyl differs from commonly prescribed oxycodone in potency and unpredictable presence in counterfeit pills.
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