{{Short description|Chemical compound}} {{Drugbox | IUPAC_name = 7,8-Dihydro-14-hydroxynormorphinone | image = Noroxymorphone.svg | image_class = skin-invert-image | width = <!-- Clinical data --> | tradename = | Drugs.com = | MedlinePlus = | pregnancy_US = | pregnancy_category = | legal_AU = | legal_CA = | legal_UK = | legal_US = Schedule II | legal_DE = | dependency_liability = High (same oxymorphone) | routes_of_administration = intravenous, intramusucular, subcutaneous, oral, rectal, intranasal <!-- Identifiers -->| CAS_number = 33522-95-1 | PubChem = 5497189 | DrugBank = DBMET00424 | ChemSpiderID = 4593755 | UNII = 9NZ7111A9O <!-- Chemical data -->| C = 16 | H = 17 | N = 1 | O = 4 | molecular_weight = | smiles = Oc1ccc2C[C@H]3NCC[C@@]45[C@@H](Oc1c24)C(=O)CC[C@@]35O | StdInChI = 1S/C16H17NO4/c18-9-2-1-8-7-11-16(20)4-3-10(19)14-15(16,5-6-17-11)12(8)13(9)21-14/h1-2,11,14,17-18,20H,3-7H2/t11-,14+,15+,16-/m1/s1 | StdInChIKey_Ref = | StdInChIKey = HLMSIZPQBSYUNL-IPOQPSJVSA-N | synonyms = }}

'''Noroxymorphone''' is an opioid<ref name = "Lemberg_2008">{{cite journal | vauthors = Lemberg KK, Siiskonen AO, Kontinen VK, Yli-Kauhaluoma JT, Kalso EA | title = Pharmacological characterization of noroxymorphone as a new opioid for spinal analgesia | journal = Anesthesia and Analgesia | volume = 106 | issue = 2 | pages = 463–70, table of contents | date = February 2008 | pmid = 18227301 | doi = 10.1213/ane.0b013e3181605a15 | s2cid = 16524280 | doi-access = free }}</ref> which is both a metabolite of oxymorphone and oxycodone and is manufactured specifically as an intermediate in the production of narcotic antagonists such as naltrexone and others. It is a potent agonist of the μ-opioid receptor, but is poorly able to cross the blood-brain-barrier into the central nervous system, and for this reason, has only minimal analgesic activity.<ref name="Preedy2016">{{cite book| vauthors = Preedy VR |title=Neuropathology of Drug Addictions and Substance Misuse Volume 3: General Processes and Mechanisms, Prescription Medications, Caffeine and Areca, Polydrug Misuse, Emerging Addictions and Non-Drug Addictions|url=https://books.google.com/books?id=Yu9eBwAAQBAJ&pg=PA462|date=25 April 2016|publisher=Elsevier Science|isbn=978-0-12-800677-1|pages=462–464}}</ref><ref name="SmithPassik2008">{{cite book| vauthors = Smith H, Passik S |title=Pain and Chemical Dependency|url=https://books.google.com/books?id=T88C-9VTDXMC&pg=PA195|date=25 April 2008|publisher=Oxford University Press, USA|isbn=978-0-19-530055-0|pages=195–}}</ref><ref name = "Lemberg_2008" />

In the United States, noroxymorphone is controlled as a Schedule II Narcotic controlled substance with an ACSCN of 9637 and in 2014 the DEA set annual aggregate manufacturing quotas of 17 500 kilogrammes for conversion and 1262.5&nbsp;kg for sale.<ref>{{cite magazine |url=http://www.deadiversion.usdoj.gov/fed_regs/quotas/2014/fr0825.htm |title=Final Adjusted Aggregate Production Quotas for Schedule I and II Controlled Substances and Assessment of Annual Needs for the List I Chemicals Ephedrine, Pseudoephedrine, and Phenylpropanolamine for 2014 |magazine=Federal Register |volume=79 |issue=164 |pages=50700–50704 |author=Drug Enforcement Administration |date=August 25, 2014 |author-link=Drug Enforcement Administration |access-date=February 27, 2016 |archive-date=March 4, 2016 |archive-url=https://web.archive.org/web/20160304053357/http://www.deadiversion.usdoj.gov/fed_regs/quotas/2014/fr0825.htm |url-status=dead }}</ref> In other countries, it may be similarly controlled, controlled at a lower level, or regulated in another way.

== See also == * Oxymorphone hydrazone * Oxymorphol - a metabolite of oxymorphone and an intermediate in the creation of hydromorphone * Hydromorphone * Oxycodone * Norbuprenorphine * Norbinaltorphimine

== References == {{Reflist|2}}

{{Opioidergics}}

Category:4,5-Epoxymorphinans Category:Semisynthetic opioids Category:German inventions Category:Hydroxyarenes Category:Ketones Category:Tertiary alcohols Category:Ethers Category:Mu-opioid receptor agonists Category:Euphoriants

{{analgesic-stub}} Category:Recreational drug metabolites