Provided is a solid pharmaceutical composition comprising 2-amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol (FTY720 or fingolimod), a filler and a stabilizer comprising a cyclodextrin. 2-amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol is an immunomodulatory drug.