It was revealed in experiments on mice, that 3-hydroxypyridine derivatives possess marked anticonvulsive activity, especially in convulsions induced by GABA-ergic substances, less in corasol, maximal electroshock and strychnine induced ones. The anticonvulsive activity in the rows of 2-substituted and 2.6-disubstituted derivatives of 3-hydroxypyridine gets increased due to the introduction of larger in volume alkyl substitutes into the 2nd molecule position. Among the 2,6-disubstituted 3-hydroxypyridine derivatives, agents were revealed that are able to enhance hyperkinesis induced by 5-hydroxytryptophan.