The present invention provides a formulation comprising: (i) an anti-RSV monoclonal antibody; and (ii) an ionic excipient, wherein the monoclonal antibody is present at a concentration of about 50 mg / ml or more; Present at a concentration of 50-150 mM, the formulation has a pH of about 5.5 to about 7.5.本発明は:(i)抗RSVモノクローナル抗体;および(ii)イオン性賦形剤を含む製剤を提供し、このモノクローナル抗体は約50mg/ml以上の濃度で存在し、このイオン性賦形剤は50~150mMの濃度で存在し、この製剤は約5.5~約7.5のpHを有する。