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[Phenibut potentiation of the therapeutic action of antiparkinson agents].

[Article in Russian]


It was observed in experiments on mice that the central action of phenibut (beta-phenyl-gamma-aminobutyric acid) diminished after destruction of brain dopaminergic neurons by 6-hydroxydopamine and after pretreatment with the dopamine receptor blocker haloperidol which suggests the dopaminergic component in the action of phenibut. In 13 of 16 patients receiving long-term treatment with antiparkinsonic drugs, addition of phenibut (0.25 g thrice daily for 10 days) resulted in marked clinical improvement with a significant increase of motor activity, as well as diminution of both rigidity and tremor. Follow-up showed a significant lowering of muscle tone of rigid muscles, augmentation of their strength and amplitude of movements. In 8 patients receiving phenibut without antiparkinsonic drugs the results were negligible.

[Indexed for MEDLINE]

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