The present invention relates to the stable pharmaceutical composition of a suitable hypolipidemic agent. Preferably, the present invention discloses novel formulations of the compound of formula (I), or pharmaceutically acceptable salts of compounds of formula (I). More particularly the present invention relates to the stable pharmaceutical composition of compounds of formula (I) comprising compounds of formula (I) or its pharmaceutically acceptable salts, wherein the pH of the formulation is maintained above 7.本發明關於合適之降血脂劑的穩定醫藥組成物。較佳地,本發明揭示式(I)化合物或式(I)化合物之醫藥上可接受的鹽類之新穎調合物。更具體地說,本發明關於包含式(I)化合物或其醫藥上可接受之鹽類的式(I)化合物之穩定醫藥組成物,其中該調合物之pH值係保持在超過7。