The present disclosure relates to, inter alia, stable aqueous solutions comprising a high concentration of an antibody that binds to human complement component C5 and methods for preparing the solutions. The disclosure also provides methods for treating or preventing complement-associated disorders (for example, age-related macular degeneration or rheumatoid arthritis) using the solutions. Also featured are therapeutic kits containing one or more of the solutions and a means for administering the solutions to a patient in need such a treatment.
