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  • Title: Substitution of the selective serotonin reuptake inhibitors fluoxetine and paroxetine for the discriminative stimulus effects of ethanol in rats.
    Author: Maurel S, Schreiber R, De Vry J.
    Journal: Psychopharmacology (Berl); 1997 Apr; 130(4):404-6. PubMed ID: 9160858.
    Abstract:
    Rats trained to discriminate ethanol (EtOH, 1 g/kg IP) from saline in a two-lever procedure completely generalized to the selective serotonin reuptake inhibitors (SSRIs) fluoxetine and paroxetine. Substitution of fluoxetine was completely blocked by the selective 5-HT2A receptor antagonist MDL 100,907 and not affected by the selective 5-HT1A receptor antagonist WAY-100635. It is suggested that the previously reported effectiveness of SSRIs in reducing EtOH consumption could be based on similarities in discriminative stimulus effects of SSRIs and EtOH. Stimulation of 5-HT2A receptors may underlie these stimulus similarities and contribute to the EtOH intake-reducing effects of SSRIs.
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