Library norcodeine Norcodeine is an opiate analogue that is the N-demethylated derivative of codeine. It has relatively little opioid activity in its own righ…

Library normorphine Normorphine is an opiate analogue, the N-demethylated derivative of morphine, that was first described in the 1950s when a large group of N…

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Library npiperidinyl_etonitazene

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Library npyrrolidino_ethylene_isotonitazene

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Library npyrrolidino_isotonitazene

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Library npyrrolidino_metodesnitazene

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Library npyrrolidino_metonitazene

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Library npyrrolidino_protonitazene

Library ocfentanil Ocfentanil is a potent synthetic opioid structurally related to fentanyl that was developed in the early 1990s as one of a series of potent…

Library ocfentanyl Ocfentanil is a potent synthetic opioid structurally related to fentanyl that was developed in the early 1990s as one of a series of potent…

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Library odsmt O-Desmethyltramadol is an opioid analgesic and the primary active metabolite of tramadol. Since the 2010s, it has been available through th…

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Library opium Opium is a naturally occurring analgesic harvested as a latex from ripe Papaver somniferum (opium poppy) pods. The sap of the poppy plant p…

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Library orthomethylfentanyl

Library oxycodone Oxycodone is a semisynthetic opioid of the morphinan class, synthesized from poppy-derived thebaine. Developed in Germany in 1916 as part o…

Library oxymorphone Oxymorphone (also known by the brand name Opana) is a semi-synthetic opioid analgesic used in the management of moderate to severe pain, an…

Library parafluorofentanyl Parafluorofentanyl is an extremely potent synthetic opioid and analogue of fentanyl, originally developed by Janssen Pharmaceutica during t…

Library pentazocine A synthetic opioid used as an analgesic. It is only used IM and IV in the medical field and has respiratory depressant effects. It is pregn…

Library pethidine Pethidine, known as meperidine in the United States (sold under the brand name Demerol), is a synthetic opioid analgesic used for the treat…

Library phenomorphan Phenomorphan is an opioid analgesic. It is not currently used in medicine, but has similar side-effects to other opiates, which include itc…

Library pholcodeine Pholcodine is an opioid cough suppressant (antitussive). It helps suppress unproductive coughs and also has a mild sedative effect, but has…