Lack of interaction between flibanserin and antidepressants in inducing serotonergic syndrome in rats

This study was aimed at evaluating the ability of flibanserin, a 5-HT1A receptor full agonist with antidepressant potential, to induce the 5-HT syndrome (flat body posture, hindlimb abduction and forepaw treading) in rats previously administered with clinically active antidepressants imipramine, flu...

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Veröffentlicht in:The international journal of neuropsychopharmacology 2001-03, Vol.4 (1), p.9-15
Hauptverfasser: Borsini, Franco, Brambilla, Alessandro, Cesana, Raffaele, Grippa, Nicoletta
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container_issue 1
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container_title The international journal of neuropsychopharmacology
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creator Borsini, Franco
Brambilla, Alessandro
Cesana, Raffaele
Grippa, Nicoletta
description This study was aimed at evaluating the ability of flibanserin, a 5-HT1A receptor full agonist with antidepressant potential, to induce the 5-HT syndrome (flat body posture, hindlimb abduction and forepaw treading) in rats previously administered with clinically active antidepressants imipramine, fluoxetine or paroxetine. The 5-HT syndrome was observed for 50 min after intraperitoneal administration of flibanserin (0, 8 or 64 mg/kg) given 10 min after antidepressants (0 or 15 mg/kg). Flibanserin induced flat body posture and very slight hindlimb abduction only at 64 mg/kg. No dose of flibanserin elicited forepaw treading. Similar but milder symptoms were induced by antidepressants. No interaction between flibanserin and antidepressants was observed. A dose of 10 mg/kg flibanserin did not change the flat body posture induced by 8 mg/kg (±)-8-OH-DPAT but antagonized (±)-8-OH-DPAT-induced forepaw treading.
doi_str_mv 10.1017/S1461145701002206
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The 5-HT syndrome was observed for 50 min after intraperitoneal administration of flibanserin (0, 8 or 64 mg/kg) given 10 min after antidepressants (0 or 15 mg/kg). Flibanserin induced flat body posture and very slight hindlimb abduction only at 64 mg/kg. No dose of flibanserin elicited forepaw treading. Similar but milder symptoms were induced by antidepressants. No interaction between flibanserin and antidepressants was observed. 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subjects 8-Hydroxy-2-(di-n-propylamino)tetralin - pharmacology
Animals
Antidepressive Agents - pharmacology
Antidepressive Agents, Second-Generation - pharmacology
Antidepressive Agents, Tricyclic - pharmacology
Benzimidazoles - pharmacology
Drug Interactions - physiology
Fluoxetine - pharmacology
Imipramine - pharmacology
Male
Paroxetine - pharmacology
Rats
Rats, Sprague-Dawley
Regular Research Article
Serotonin Receptor Agonists - pharmacology
Serotonin Syndrome - chemically induced
title Lack of interaction between flibanserin and antidepressants in inducing serotonergic syndrome in rats
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