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Opioids or related analgesics and agents affecting opioid receptors
12 subordinate codes
XM05B3DiamorphineXM69R4Morphine, morphine derivatives and metabolitesXM4ES0OpiumXM4SL9OxycodoneXM9UH3NalfurafineXM4587Codeine, codeine derivatives and other opioids used in cough suppressionXM1ZY9Methadone, methadone derivatives and other drugs used to treat opioid addictive disordersXM4MV8Opioid anaesthetics- Opioid receptor antagonists
XM4S22Other opioid analgesics, natural, synthetic and semi-syntheticXM4PD9NalmefeneXM4M74Difelikefalin