FIELD: chemistry.
SUBSTANCE: invention relates to a crystalline form of 3-methyl-7-[4-(4-benzhydrylpiperazinyl-1)butyl]xanthine, which can be used as an antiallergic agent. Crystalline form of succinate 3-methyl-7-[4-(4-benzhydrylpiperazinyl-1)butyl]xanthine is characterized by peak positions in an X-ray powder pattern obtained using Cu(Kα)-radiation, 2θ, deg.: 6.1 ± 0.2, 12.2 ± 0.2 and 20.0 ± 0.2. Invention also relates to a pharmaceutical composition and a medicinal agent containing said form, as well as to use thereof for treating allergic diseases or disorders.
EFFECT: faster onset of therapeutic effect, higher therapeutic effectiveness, antipyretic properties.
14 cl, 3 dwg, 5 tbl, 8 ex
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