FIELD: medicine.
SUBSTANCE: invention refers to public health service and can be used in pharmacology when preparing dosage forms. Substance of the invention consists in preparing a composition of a solid dosage form containing mixed in matrix ethyl cellulose (EC) with concentration of ethoxy groups 49.6% to 51% and viscosity measured with a Hercules horizontal capillary viscosimeter at temperature 25°C in 5% EC in mixed toluene/ethanol, 80:20, equal 7.2 centipoises to 25 centipoises, and effective amount of at least one active pharmaceutical ingredient.
EFFECT: implementation of said invention results in more solid tablets exhibiting excellent mechanical crush strength.
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