This invention relates to solid formulations for the oral delivery of live microbial cells which comprise dried viable cells and small amounts of a bile acid binding agent, for example, an anion exchange resin such as cholestyramine. The presence of bile acid binding agents in the formulation significantly increases the survival of the cells in the intestinal tract and facilitates delivery of the viable cells to the intestine.本発明は、乾燥生細胞、及び小量の胆汁酸結合剤、例えば陰イオン交換樹脂、例えばコレスチラミンを含む、生きた微生物細胞の経口送達のための固体配合物に関する。配合物中における胆汁酸結合剤の存在が、腸管における細胞の生存性を顕著に増大させ、腸への生細胞の送達を促進する。【選択図】なし