The conditions of some biochemical and functional systems of the rat organisms at daily intramuscular injections of obsidan (0.05 mg/100 g body weight) for one month were studied to evaluate the effect of obsidan on the adrenergic-dependent adaptive reactions. It was shown that the procedure of injections itself (the control group of animals receiving injections of sodium chloride isotonic solution) is stress leading to a decrease of beta-adrenergic-dependent reactions and an increase of alpha-adrenergic-dependent ones. The combination of this stress with the pharmacological effect of obsidan is characterized by a decrease of adrenaline release in blood, a reduction of manifestations of alpha-adrenergic reactions, a decline of lipid energy substrates consumption level.
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