Mentat improves mental functions by a modulation of the cholinergic and GABAergic neurotransmission. By restoring the frontal cortical muscarinic and cholinergic receptor activities, Mentat improves the mental quotient, memory span, concentration ability and stress threshold. Mentat helps reduce the level of tribulin, an endogenous Mono Amine Oxidase inhibitor, that is elevated in various levels of anxiety. Mentat also ameliorates attention fluctuations and behavioral disorders. Mentat exhibits significant anti-parkinsonian activity by enhancing the dopamine post-synaptic receptor activity. The sedative and tranquilizing effects of Mentat offer protection against convulsions and are beneficial in insomnia. Mentat improves articulation and corrects speech defects.