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Eur J Pharmacol. 1986 Oct 7;129(3):411-5.

Effect of sulpiride on amphetamine-induced behaviour in relation to changes in striatal dopamine release in vivo.


Intracerebral dialysis was used to simultaneously monitor extracellular dopamine (DA) in striatum and behaviour in rats following administration of amphetamine and sulpiride. Amphetamine (2 mg/kg s.c.) caused a marked release of DA into striatal perfusates, an effect which was potentiated in rats pretreated with sulpiride (50 mg/kg s.c.). Amphetamine-induced stereotyped head and forepaw movements were potentiated by sulpiride at a time point corresponding with the enhanced release of DA. In comparison, amphetamine-induced locomotor activity was completely inhibited by sulpiride.

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