FIELD: medicine; pharmacology.
SUBSTANCE: invention refers to new pharmaceutically acceptable salts of derivatives with anticonvulsant action, particularly to crystalline topyrhamate choline salt of formulae (VI) 
, essentially it is characterised by the following roentgenogram:
The invention refers to the method of production of related based pharmaceutical compositions and for epilepsy treatment.
EFFECT: products are characterised with increased efficiency.
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