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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: J Pharmacol Exp Ther. 2008 Jul 1;327(1):154–160. doi: 10.1124/jpet.108.140079

Fig. 5.

Fig. 5

Antagonism of the effects of herkinorin (0.32 mg/kg) in females by quaternary naltrexone (1 mg/kg, s.c.). Quaternary naltrexone alone, measured 20 min after administration, had not effect on prolactin levels (not shown). *Significantly different from herkinorin alone [p<0.05]. See Fig. 2 and text for other details.