By employing fluorescent histochemistry and spectrofluorimetry the influence of an original psychotropic substance -- carbidine on the level, localization and accumulation of the adrenergic mediator in Vas deferens, dura mater and the kidney capsule was studied "in vivo" and "in vitro". Carbidine was shown to capable of liberating the adrenergic mediator from the sympathetic nerve fibres of the peripheral tissues without affecting the capture and accumulation of exogenous norepinephrine by adrenergic nerve fibres.
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