Amitriptylinoxide

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Amitriptylinoxide
File:Amitriptylinoxide.png
Systematic (IUPAC) name
3-(10,11-dihydro- 5H-dibenzo[a,d]cycloheptene- 5-ylidene)- N,N-dimethyl- 1-propanamine N-oxide
Clinical data
Routes of
administration
Oral
Legal status
Legal status
  • ℞ (Prescription only)
Identifiers
CAS Number 4317-14-0
ATC code none
PubChem CID 20313
ChemSpider 19137
Chemical data
Formula C20H23NO
Molar mass 293.40 g/mol
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Amitriptylinoxide (Amioxid, Ambivalon, Equilibrin), or amitriptyline N-oxide, is a tricyclic antidepressant (TCA) which was introduced in Europe in the 1970s for the treatment of depression.[1]

Amitriptylinoxide is both an analogue and metabolite of amitriptyline, and has similar effects as well as equivalent efficacy as an antidepressant.[2][3][4][5] However, it has a faster onset of action and fewer adverse effects, including reduced drowsiness, sedation, anticholinergic symptoms like dry mouth, sweating, and dizziness, orthostatic hypotension, and cardiotoxicity.[2][3][3][4][5][6]

In receptor binding assays, amitripylinoxide was found to have generally equivalent pharmacology to amitriptyline, acting as a serotonin and norepinephrine reuptake inhibitor, serotonin receptor antagonist, and H1 receptor antagonist, among other properties, but with approximately 60-fold lower affinity for the α1-adrenergic receptor, and the weakest affinity of any of the TCAs analyzed for the muscarinic acetylcholine receptors.[3][7][8]

See also

References

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  1. Swiss Pharmaceutical Society (2000). Index Nominum 2000: International Drug Directory (Book with CD-ROM). Boca Raton: Medpharm Scientific Publishers. p. 49. ISBN 3-88763-075-0.  More than one of |pages= and |page= specified (help)
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  4. 4.0 4.1 Godt HH, Fredslund-Andersen K, Edlund AH (1971). "[Amitriptyline N-oxide. A new antidepressant. A clinical double-blind trial in comparison with amitriptyline]". Nordisk Psykiatrisk Tidsskrift. Nordic Journal of Psychiatry (in Danish). 25 (3): 237–46. PMID 4945956. 
  5. 5.0 5.1 Aronson, Jeffrey Kenneth (2008). Meyler's Side Effects of Psychiatric Drugs (Meylers Side Effects). Amsterdam: Elsevier Science. p. 30. ISBN 0-444-53266-8.  More than one of |pages= and |page= specified (help)
  6. Dencker SJ (1971). "[Clinical trial with imipramine-N-oxide and amitriptyline-N-oxide]". Nordisk Psykiatrisk Tidsskrift. Nordic Journal of Psychiatry (in Swedish). 25 (5): 463–70. PMID 4947298. 
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