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  • Title: The alpha 2-adrenoceptor antagonists idazoxan and yohimbine can unmask the postsynaptic dopamine agonist effects of B-HT 920.
    Author: Meltzer LT, Wiley JN, Heffner TG.
    Journal: Eur J Pharmacol; 1989 Oct 24; 170(1-2):105-7. PubMed ID: 2575523.
    Abstract:
    Administration of B-HT 920 alone produced weak stereotypy in a small percentage (4-8%) of rats. In contrast, after combined administration of idazoxane and B-HT 920, stereotyped behaviors (sniffing and licking) were consistently produced in all rats. The appearance of stereotypy after combined treatment with yohimbine and B-HT 920 was inversely related to the dose of yohimbine. These data suggest that the alpha 2-adrenoceptor agonist effects of B-HT 920 can mask it's postsynaptic dopamine agonist effects.
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