Abstract

The behavioral interaction of intraperitoneal (i.p.) injections of meprobamate with intracerebroventricular (i.c.v.) injections of adenosine or 5'-N-ethylcarboxamidoadenosine (NECA) was examined on spontaneous locomotor activity in mice. The locomotor depressant effect of meprobamate, an adenosine uptake inhibitor, was potentiated by adenosine, but not by NECA, an uptake-resistant adenosine analogue. These findings suggest that heightened endogenous adenosine levels could mediate some of the central actions of meprobamate.

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