Desmethylclozapine

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Desmethylclozapine
File:N-Desmethylclozapine.png
Systematic (IUPAC) name
8-chloro-11-piperazin-1-yl-5H-dibenzo[b,e][1,4]diazepine
Clinical data
Routes of
administration		 Oral
Legal status
Legal status
  • Uncontrolled
Identifiers
CAS Number 6104-71-8
ATC code none
PubChem CID 2820
ChemSpider 14126465
Chemical data
Formula C17H17ClN4
Molar mass 312.80 g/mol[[Script error: No such module "String".]]
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N-Desmethylclozapine (NDMC), or norclozapine, is a major active metabolite of the atypical antipsychotic drug clozapine.[1][2] Interestingly, unlike clozapine, it possesses intrinsic activity at the D2/D3 receptors, and acts as a weak partial agonist at these sites similarly to aripiprazole and bifeprunox.[3] Notably, NDMC has also been shown to act as a potent and efficacious agonist at the M1 and δ-opioid receptors, unlike clozapine as well. Therefore, NDMC is considered a delta-opioid agonist.[4][5][6] It was hypothesized that on account of these unique actions, NDMC might underlie the clinical superiority of clozapine over other antipsychotics. However, clinical trials found NMDC itself ineffective in the treatment of schizophrenia.[7][8] This may be due to the fact that it possesses relatively low D2/D3 occupancy compared to 5-HT2 (<15% versus 64-79% at a dose of 10-60 mg/kg s.c. in animal studies).[9] In any case, though not useful in the treatment of positive symptoms on its own, it cannot be ruled out that NDMC may contribute to the improvement of cognitive and/or negative symptoms with clozapine.[7]

See also

References

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Antipsychotics (neuroleptics) (N05A)
Typical
Benzamides: Levosulpiride • Nemonapride • Sulpiride • Sultopride • Tiapride • Veralipride; Butyrophenones: Azaperone • Benperidol • Bromperidol • Droperidol • Fluanisone • Haloperidol • Lenperone • Moperone • Pipamperone • Spiperone • Timiperone • Trifluperidol; Diphenylbutylpiperidines: Clopimozide • Fluspirilene • Penfluridol • Pimozide; Phenothiazines: Acepromazine • Acetophenazine • Butaperazine • Carphenazine • Chloracizine • Chlorproethazine • Chlorpromazine • Cyamemazine • Dixyrazine • Fluacizine • Fluphenazine • Levomepromazine/Methotrimeprazine • Mesoridazine • Perazine • Periciazine • Perphenazine • Piperacetazine • Pipotiazine • Prochlorperazine • Promazine • Promethazine • Propiomazine • Sulforidazine • Thiethylperazine • Thiopropazate • Thioproperazine • Thioridazine • Trifluoperazine • Triflupromazine; Thioxanthenes: Chlorprothixene • Clopenthixol • Flupentixol • Thiothixene • Zuclopenthixol; Tricyclics: Amoxapine • Butaclamol • Fluotracen • Loxapine • Metitepine/Methiothepin • Octoclothiepin • Trimipramine; Others: Prothipendyl
Atypical
Others

M: PSO/PSI

dsrd (o, p, m, p, a, d, s), sysi/epon, spvo

proc, drug(N5A/5B/5C/6A/6B/6D)

Classes
Antidepressants
7-OH-Amoxapine • Amezepine • Amineptine • Amitriptyline • Amitriptylinoxide • Amoxapine • Aptazapine • Azepindole • Azipramine • Butriptyline • Cianopramine • Ciclazindol • Ciclopramine • Clomipramine • Cotriptyline • Cyanodothiepin • Demexiptiline • Depramine/Balipramine • Desipramine • Dibenzepine • Dimetacrine • Dosulepin/Dothiepin • Doxepin • Enprazepine • Esmirtazapine • Fluotracen • Hepzidine • Homopipramol • Imipramine • Imipraminoxide • Intriptyline • Iprindole • Ketipramine • Litracen • Lofepramine • Losindole • Loxapine • Maprotiline • Mariptiline • Mazindol • Melitracen • Metapramine • Mezepine • Mianserin • Mirtazapine • Naranol • Nitroxazepine • Nortriptyline • Noxiptiline • Octriptyline • Opipramol • Oxaprotiline • Pipofezine • Pirandamine • Propizepine • Protriptyline • Quinupramine • Setiptiline/Teciptiline • Tandamine • Tampramine • Tianeptine • Tienopramine • Trimipramine
Antihistamines
Antipsychotics
Acetophenazine • Amoxapine • Asenapine • Butaclamol • Butaperazine • Carphenazine • Carpipramine • Chlorpromazine • Chlorprothixene • Ciclindole • Clocapramine • Clomacran • Clotiapine • Clozapine • Flucindole • Fluotracen • Flupentixol • Fluphenazine • Gevotroline • Homopipramol • Levomepromazine/Methotrimeprazine • Loxapine • Maroxepin • Mesoridazine • Metitepine/Methiothepin • Metoxepin • Mosapramine • Naranol • Olanzapine • Perazine • Perphenazine • Periciazine • Piperacetazine • Pipotiazine • Piquindone • Prochlorperazine • Promazine • Prothipendyl • Quetiapine • Sulforidazine • Thiethylperazine • Thiopropazate • Thioridazine • Thiothixene • Trifluoperazine • Triflupromazine • Zotepine • Zuclopenthixol
Others
  1. ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
  2. ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
  3. ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
  4. ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
  5. ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
  6. ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
  7. ↑ 7.0 7.1 Bishara D, Taylor D (2008). "Upcoming agents for the treatment of schizophrenia: mechanism of action, efficacy and tolerability". Drugs. 68 (16): 2269–92. PMID 18973393. 
  8. ↑ Mendoza MC, Lindenmayer JP (2009). "N-desmethylclozapine: is there evidence for its antipsychotic potential?". Clinical Neuropharmacology. 32 (3): 154–7. doi:10.1097/WNF.0b013e31818d46f5. PMID 19483482. 
  9. ↑ Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
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