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Femoxetine
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    Femoxetine

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    Femoxetine
    Femoxetine.svg
    Clinical data
    Routes of
    administration
    Oral
    ATC code
    • None
    Legal status
    Legal status
    • In general: uncontrolled
    Pharmacokinetic data
    Elimination half-life 7–27 hours
    Identifiers
    • (3R,4S)-3-[(4-methoxyphenoxy)methyl]-1-methyl-4-phenyl-piperidine
    CAS Number
    PubChem CID
    ChemSpider
    UNII
    ChEMBL
    CompTox Dashboard (EPA)
    Chemical and physical data
    Formula C20H25NO2
    Molar mass 311.425 g·mol−1
    3D model (JSmol)
    • O(c1ccc(OC)cc1)C[C@@H]3[C@@H](c2ccccc2)CCN(C)C3
    • InChI=1S/C20H25NO2/c1-21-13-12-20(16-6-4-3-5-7-16)17(14-21)15-23-19-10-8-18(22-2)9-11-19/h3-11,17,20H,12-15H2,1-2H3/t17-,20-/m1/s1 checkY
    • Key:OJSFTALXCYKKFQ-YLJYHZDGSA-N checkY
      (verify)

    Femoxetine (INN; tentative brand name Malexil; developmental code name FG-4963) is a drug related to paroxetine that was being developed as an antidepressant by Danish pharmaceutical company Ferrosan in 1975 before acquisition of the company by Novo Nordisk. It acts as a selective serotonin reuptake inhibitor (SSRI). Development was halted to focus attention on paroxetine instead, as femoxetine could not be administered as a daily pill.

    Both femoxetine and paroxetine were invented in the 1970s. Jørgen Anders Christensen's name is on the patents and Jorgen Buus-Lassen's name is on the pharmacology paper.

    After Ferrosan's acquisition, femoxetine died from neglect.

    In a separate patent, Ferrosan stated that Femoxetine could be used as an appetite suppressant, using ten times the dosage than for paroxetine, 300 - 400mg daily.

    Femoxetine has the same stereochemical properties as Nocaine, another agent with a similar structure claimed to have been synthesized using arecoline as the starting alkaloid.

    Analogs

    1. Addition of the para-fluoro atom results in a different compound that is a hybrid of femoxetine & paroxetine named FG 7080, which has a separate patent. According to the patent tables, incorporation of the fluorine atom potentiated the 5-HT affinity considerably.
    2. Pfizer made some similar analogs E.g. a Viloxazine type of catechol ether is used, but 4-phenyl instead of based on a morpholine ring.
    3. NNC-63-0780. binds to ORL1 instead of SERT.
    • NNC 09-0026

    See also


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