Femoxetine
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| Routes of administration | Oral | 
| ATC code | 
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| Elimination half-life | 7–27 hours | 
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| Chemical and physical data | |
| Formula | C20H25NO2 | 
| Molar mass | 311.425 g·mol−1 | 
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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.