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Pharmacol Biochem Behav. 1984 Mar;20(3):387-9.

Caffeine reduces amphetamine-induced activity in asymmetrical interaction.

Abstract

Caffeine-amphetamine interactions were studied to determine whether attenuation of amphetamine-induced activity by caffeine pretreatment (30 mg/kg) is the result of increased or decreased sensitivity to amphetamine. Caffeine pretreatment attenuated amphetamine activity in the rats without producing a horizontal shift in the dose-response curve. Results support a reduction in sensitivity to amphetamine. A cross-tolerance design revealed an asymmetrical interaction between caffeine and amphetamine. Multiple caffeine treatments (30 mg/kg) produced tolerance and attenuation of subsequent amphetamine activity (1.5 mg/kg). Amphetamine did not produce tolerance or affect subsequent caffeine-induced activity.

PMID:
6709674
DOI:
10.1016/0091-3057(84)90276-4
[Indexed for MEDLINE]

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