Suppression of dopamine-related side effects of morphine by aripiprazole, a dopamine system stabilizer.

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Narita M, Takei D, Shiokawa M, Tsurukawa Y, Matsushima Y, Nakamura A, Takagi S, Asato M, Ikegami D, Narita M, Amano T, Niikura K, Hashimoto K, Kuzumaki N, Suzuki T

Suppression of dopamine-related side effects of morphine by aripiprazole, a dopamine system stabilizer.

Eur J Pharmacol. 2008 Dec 14;600(1-3):105-9. doi: 10.1016/j.ejphar.2008.10.030. Epub 2008 Oct 21.

PubMed ID

18955042 [ View in PubMed

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Abstract

Dopamine receptor antagonists are commonly used to counter the adverse effects of opioids such as hallucinations, delusions and emesis. However, most of these agents themselves have side effects, including extrapyramidal symptoms. Here, we investigated the effect of the dopamine system stabilizer aripiprazole on morphine-induced dopamine-related actions in mice. Morphine-induced hyperlocomotion and reward were significantly suppressed by either the dopamine receptor antagonist prochlorperazine or aripiprazole. Catalepsy was observed with a high dose of prochlorperazine, but not with an even higher dose of aripiprazole. The increased level of dialysate dopamine in the nucleus accumbens stimulated by morphine was significantly decreased by pretreatment with aripiprazole. These results suggest that the co-administration of aripiprazole may be useful for reducing the severity of morphine-induced dopamine-related side effects.

DrugBank Data that Cites this Article

Drug Targets

Drug	Target	Kind	Organism	Pharmacological Action	Actions
Prochlorperazine	Dopamine D2 receptor	Protein	Humans	Yes	Antagonist	Details