The invention relates to application of compounds having a general structural formula: where R.dbd. Li, Na, K, R.sup.1=--H, --NH.sub.2, --Br, --Cl, --OH, --COOH, B=--N.dbd., --CH.dbd., Z=--CH.dbd., --N.dbd., A=--N.dbd. at B=--N.dbd., Z=--CH--, A=--CH.dbd. at B=--N.dbd., Z=--CH--, A=--CH.dbd. at B=--N.dbd., Z=--N.dbd., A=--CH.dbd. at B=--CH.dbd., Z=--CH.dbd., A=--CH.dbd. at B=--CH.dbd., Z=--N.dbd., and/or their pharmacologically acceptable salts as an active ingredient having appropriate activity with respect to nitrergic and/or dopaminergic systems, in a pharmaceutical composition as neuroprotector for improvement of the cognitive function and for normalization of psychophysiological status, as well as for treatment of a wide spectrum of psychological diseases, cardiovascular diseases, diseases caused by substance abuse, and diseases caused by a hyperactive immune system in mammals including human beings.