[The brain catecholamine system in narcotic-dependent rats under the action of oxytocin].

Intraventricular injection of oxytocin exerted a selective effect on catecholamine metabolism in microchondrial fractions of different brain formations of normal and narcotic drug-dependent animals. The drug-dependent group showed a higher level of the brain catecholamines as compared to the controls, oxytocin decreasing the catecholamine level in this group. The oxytocin modulatory role in the processes of narcotic drug-dependence, is discussed.