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Carbonate derivatives of 14β-hydroxycodeine "viz., 14β-hydroxy-6-O-(methoxycarbonyl)codeine, 6-O-methoxycarbonyl-14β-(methoxycarbonyloxy)codeine, and 14β-acetoxy-6-O-methoxy-carbonylcodeine, potential substrates for ring C modification in morphinane (sic) alkaloids, were synthesized for the first time."
In humans, N-demethylation of oxycodone to noroxycodone by CYP3A4 is the major metabolic pathway, accounting for 45% ± 21% of a dose of oxycodone, while O-demethylation of oxycodone into oxymorphone by CYP2D6 and 6-ketoreduction of oxycodone into 6-oxycodols represent relatively minor metabolic pathways, accounting for 11% ± 6% and 8% ± 6% ...
Ethylmorphine [2] 9059 opiate Etorphine hydrochloride [4] 9640 opiate Granulated opium [2] 9193 opiate Hydrocodone [2] 9150 opiate Hydromorphone [2] 9260 opiate Metopon [2] 9300 opiate Morphine [2] 9668 opiate Noroxymorphone [5] 9610 opiate Opium extracts [2] 9620 opiate Opium fluid [2] 9330 opiate Oripavine [6] 9143 opiate Oxycodone [2] 9652 ...
Metonitazene is an analgesic compound related to etonitazene, [2] [3] which was first reported in 1957, [4] and has been shown to have approximately 1000 times the potency of morphine by central routes of administration, [5] but if used orally it has been shown to have approximately 10 times the potency of morphine.
The list will be alphabetical and will use the following format (subject to change if better suggestions are put forward). All items in the list will follow the general format: Name of drug (who calls it that) [country].
The pharmaceutical company introduced OxyContin, a brand name of oxycodone, in the 1990s and filed for chapter 11 bankruptcy in 2019 after the company was sued thousands of times.
Acute use (1–3 days) yields a potency about 1.5× stronger than that of morphine and chronic use (7 days+) yields a potency about 2.5 to 5× that of morphine. Similarly, the effect of tramadol increases after consecutive dosing due to the accumulation of its active metabolite and an increase of the oral bioavailability in chronic use.