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Morphine-N-oxide (genomorphine) is an active opioid metabolite of morphine. Morphine itself, in trials with rats, is 11–22 times more potent than morphine-N-oxide subcutaneously and 39–89 times more potent intraperitoneally. However, pretreatment with amiphenazole or tacrine increases the potency of morphine-N-oxide in relation to morphine (intraperitoneally more so than in subcutaneous administration). A possible explanation is that morphine-N-oxide is rapidly inactivated in the liver and impairment of inactivation processes or enzymes increases functionality.

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  • Morphine-N-oxide (genomorphine) is an active opioid metabolite of morphine. Morphine itself, in trials with rats, is 11–22 times more potent than morphine-N-oxide subcutaneously and 39–89 times more potent intraperitoneally. However, pretreatment with amiphenazole or tacrine increases the potency of morphine-N-oxide in relation to morphine (intraperitoneally more so than in subcutaneous administration). A possible explanation is that morphine-N-oxide is rapidly inactivated in the liver and impairment of inactivation processes or enzymes increases functionality. Morphine-N-oxide can also form as a decomposition product of morphine outside the body and may show up in assays of opium and poppy straw concentrate. Codeine and the semi-synthetics such as heroin, dihydrocodeine, dihydromorphine, hydromorphone, and hydrocodone also have equivalent amine oxide derivatives. Morphine-N-Oxide has a DEA ACSCN of 9307 and annual production quota of 655 grams in 2013. It is a Schedule I controlled substance in the US. (en)
  • N-Tlenek morfiny, genomorfina – organiczny związek chemiczny, syntetyczny lek opioidowy objęty Jednolitą konwencją o środkach odurzających z 1961 roku (wykaz I). W Polsce jest w grupie I-N Ustawy o przeciwdziałaniu narkomanii. (pl)
dbo:iupacName
  • (4R,4aR,7S,7aR,12bS)-3-Methyl-2,3,4,4a,7,7a-hexahydro-1H-4,12-methano[1]benzofuro[3,2-e]isoquinoline-7,9-diol 3-oxide (en)
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  • morphine N-oxide.svg (en)
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  • Canonical, stereo, Kekulé, skeletal formula of morphine-N-oxide (en)
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  • Morphine-N-oxide (en)
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  • N-Tlenek morfiny, genomorfina – organiczny związek chemiczny, syntetyczny lek opioidowy objęty Jednolitą konwencją o środkach odurzających z 1961 roku (wykaz I). W Polsce jest w grupie I-N Ustawy o przeciwdziałaniu narkomanii. (pl)
  • Morphine-N-oxide (genomorphine) is an active opioid metabolite of morphine. Morphine itself, in trials with rats, is 11–22 times more potent than morphine-N-oxide subcutaneously and 39–89 times more potent intraperitoneally. However, pretreatment with amiphenazole or tacrine increases the potency of morphine-N-oxide in relation to morphine (intraperitoneally more so than in subcutaneous administration). A possible explanation is that morphine-N-oxide is rapidly inactivated in the liver and impairment of inactivation processes or enzymes increases functionality. (en)
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  • Morphine-N-oxide (en)
  • N-Tlenek morfiny (pl)
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  • Morphine-N-oxide (en)
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