The present invention relates to solid forms of 6-carboxy-2-(3,5-dichlorophenyl)- benzoxazole and to methods for their preparation. The invention is also directed to pharmaceutical compositions containing at least one solid form and to the therapeutic or prophylactic use of such solid forms and compositions.本發明係關於6-羧基-2-(3,5-二氯苯基)-苯并唑之固體型式及其製備方法。本發明亦關於含有至少一種固體型式之醫藥組合物及該等固體型式及組合物之治療或預防用途。