Abstract: The invention relates to the field of pharmaceutics, in particular, to solid pharmaceutical composition comprising 2-amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol or pharmaceutically acceptable salt thereof, stabilizer, lubricant and filler; to method for preparation of pharmaceutical composition, to medicaments for immune suppression and treating multiple sclerosis. 2-Amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol represents an immune modulator, which causes redistribution of lymphocytes from blood flow into secondary lymphoid tissue that leads to immune suppression. The invention provides uniform distribution of the active ingredient in the solid composition, high stability and improved flowability of the solid pharmaceutical composition. Due to the improved flowability the compositions suggested in the invention can be used on automated equipment.