Normethadone

Synthetic opioid

R05DA06 (WHO)

Legal statusLegal status

AU: S9 (Prohibited substance)
BR: Class A1 (Narcotic drugs)^[1]
CA: Schedule I
DE: Anlage III (Special prescription form required)
US: Schedule I

Pharmacokinetic dataBioavailability100%MetabolismliverElimination half-life14 daysExcretionUrineIdentifiers

IUPAC name

6-dimethylamino-4,4-diphenyl-hexan-3-one

CAS Number

467-85-6^N
847-84-7 (HCl)

PubChem CID

10090

ChemSpider

9687^Y

UNII

KR2L2A68XL

KEGG

D07384^Y

ChEMBL

ChEMBL346331^Y

CompTox Dashboard (EPA)

DTXSID6057748

ECHA InfoCard100.006.730

Chemical and physical dataFormulaC₂₀H₂₅NOMolar mass295.426 g·mol⁻¹3D model (JSmol)

Interactive image

SMILES

O=C(C(c1ccccc1)(c2ccccc2)CCN(C)C)CC

InChI

InChI=1S/C20H25NO/c1-4-19(22)20(15-16-21(2)3,17-11-7-5-8-12-17)18-13-9-6-10-14-18/h5-14H,4,15-16H2,1-3H3^Y
Key:WCJFBSYALHQBSK-UHFFFAOYSA-N^Y

^NY (what is this?) (verify)

Normethadone (INN, BAN; brand names Ticarda, Cophylac, Dacartil, Eucopon, Mepidon, Noramidone, Normedon, and others), also known as desmethylmethadone or phenyldimazone, is a synthetic opioid analgesic and antitussive agent.^{[citation needed]} Normethadone is listed under the Single Convention on Narcotic Drugs 1961 and is a Schedule I Narcotic controlled substance in the United States, with a DEA ACSCN of 9635 and an annual manufacturing quota of 2 grams. It has an effective span of action for about 14 days, and is 12 to 20 times stronger than morphine. ^[2] The salts in use are the hydrobromide (free base conversion ratio 0.785), hydrochloride (0.890), methyliodide (0.675), oxalate (0.766), picrate (0.563), and the 2,6-ditertbutylnapthalindisulphonate (0.480).^[3]

References

^ Anvisa (2023-03-31). "RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial" [Collegiate Board Resolution No. 784 - Lists of Narcotic, Psychotropic, Precursor, and Other Substances under Special Control] (in Brazilian Portuguese). Diário Oficial da União (published 2023-04-04). Archived from the original on 2023-08-03. Retrieved 2023-08-16.
^ "Quotas - 2014". Diversion Control Division. U.S. Department of Justice, Drug Enforcement Administration. Archived from the original on 2016-03-04. Retrieved 2016-02-27.
^ Nordegren T (2002). "Normethadone". The A-Z encyclopedia of alcohol and drug abuse. Parkland, Fla.: Brown Walker Press. p. 470. ISBN 978-1-58112-404-0.

Analgesics (N02A, N02B)

Opioids

Opiates/opium	Codeine^# +aspirin +paracetamol Morphine^# (+naltrexone) Opium Laudanum Paregoric
Semisynthetic	Acetyldihydrocodeine Benzylmorphine Buprenorphine (+naloxone) Butorphanol Desomorphine Diamorphine (heroin) Dihydrocodeine (+paracetamol) Dihydromorphine Etorphine Ethylmorphine Hydrocodone (+paracetamol, +ibuprofen, +aspirin) Hydromorphinol Hydromorphone Levorphanol Metopon Nalbuphine Nicocodeine Nicodicodine Nicomorphine Oxycodone (+paracetamol, +aspirin, +ibuprofen, +naloxone, +naltrexone) Oxymorphone Papaveretum Thebacon
Synthetic	Alfentanil Alphaprodine Anileridine Bezitramide Carfentanil Dextromoramide Dextropropoxyphene Dezocine Dimenoxadol Dipipanone Ethoheptazine Fentanyl^# (+fluanisone) Ketobemidone Lofentanil Meptazinol Methadone^# NFEPP Norpipanone Oliceridine Pentazocine Pethidine (meperidine) Phenadoxone Phenazocine Phenoperidine Piminodine Piritramide Proheptazine Propiram Remifentanil Sufentanil Tapentadol Tilidine Tramadol (+celecoxib, +paracetamol) Viminol

Paracetamol-type

NSAIDs

Propionates	Benoxaprofen ^‡ Fenoprofen Flurbiprofen Ibuprofen^# (Dexibuprofen) (+paracetamol) Ketoprofen (Dexketoprofen) Loxoprofen Naproxen Oxaprozin Suprofen Tiaprofenic acid Zaltoprofen
Oxicams	Isoxicam Lornoxicam Meloxicam Piroxicam Tenoxicam
Acetates	Acemetacin Bromfenac Diclofenac Etodolac Indometacin (Indometacin farnesil) Ketorolac Sulindac Tolmetin Zomepirac ^‡
COX-2 inhibitors	Celecoxib (+tramadol) Etoricoxib Lumiracoxib ^‡ Parecoxib Rofecoxib ^‡ Valdecoxib ^‡
Fenamates	Flufenamic acid Meclofenamic acid Mefenamic acid Tolfenamic acid
Salicylates	Aspirin (acetylsalicylic acid)^# (+paracetamol/caffeine) Aloxiprin Benorylate Carbasalate calcium Choline salicylate Diflunisal Dipyrocetyl Ethenzamide Guacetisal Imidazole salicylate Magnesium salicylate Morpholine salicylate Potassium salicylate Salicin Salicylamide Salsalate Sodium salicylate Wintergreen (methyl salicylate)
Pyrazolones	Aminophenazone^‡ Ampyrone Metamizole (dipyrone) Nifenazone Phenazone Propyphenazone (+paracetamol/caffeine)
Others	Benzydamine Floctafenine Glafenine Nabumetone Nimesulide Proquazone

Cannabinoids

Ion channel
modulators

Calcium blockers	Alcohol (ethanol) Gabapentin Gabapentin enacarbil Leconotide Mirogabalin Pregabalin Ziconotide
Sodium blockers	Carbamazepine Lacosamide Local anesthetics (e.g., cocaine, lidocaine) Mexiletine Nefopam Tricyclic antidepressants (e.g., amitriptyline^#) Na_v1.7/1.8-selective: DSP-2230^§ Funapide^§ PF-05089771^§
Potassium openers	Flupirtine^‡