The present invention provides a formulation comprising: (i) a monoclonal antibody; and (ii) an ionic excipient, wherein the monoclonal antibody has about 50 mg / ml or more (eg, about 50 mg / ml to about 200 mg / ml). Concentration, the ionic excipient is present at a concentration of about 50 to about 150 mM, and the formulation has a pH of 5.5 to 6.5.本発明は:(i)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(例えば、約50mg/ml~約200mg/ml)の濃度で存在し、このイオン性賦形剤は約50~約150mMの濃度で存在し、この製剤は5.5~6.5のpHを有する。