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Potentiation of LSD-induced stimulus control by fluoxetine in the rat.

David Fiorella, Scott Helsley, R A Rabin, Jerrold C Winter

Life Sciences 1996 DOI: 10.1016/0024-3205(96)00490-0 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Animal behavioral pharmacology experiment (drug discrimination study) Peer reviewed
Population Rats trained with LSD as a discriminative stimulus
Interventions LSD (-)-fluoxetine
Topics LSD
Keywords Animals Rats, inbred f344 Fluoxetine Behavior, animal Drug interactions Stereoisomerism Male
Key findings Acute administration of either fluoxetine enantiomer shifted the LSD dose-response relationship to the left, but the potentiation was statistically significant only for (+)-fluoxetine. The authors conclude that fluoxetine potentiates LSD's discriminative stimulus effects, consistent with anecdotal human reports of LSD-SSRI interactions.

Abstract

The present investigation examined the interaction between fluoxetine enantiomers and LSD in rats trained with LSD as a discriminative stimulus. The dose response relationships for LSD alone and in combination with either (+)- or (-)-fluoxetine were determined. In both instances, the LSD dose response relationship was shifted to the left. However, statistical significance was observed only for the (+)- enantiomer. It is concluded that the effects of LSD as a discriminative stimulus are potentiated by the acute administration of fluoxetine. These results are consistent with anecdotal reports of interactions between LSD and acutely administered SSRIs in humans.

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A non-hallucinogenic LSD analog with therapeutic potential for mood disorders. Mice and cultured rat cortical neurons 2023 Preclinical study

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