The invention provides a liquid aqueous pharmaceutical formulation comprising a human anti-TNFa antibody, or antigen-binding portion thereof, which reduces pain associated with injection in a subject by at least about 50% when compared to injecting an otherwise identical formulation comprising at least one salt and/or at least one buffer. The invention also provides a liquid aqueous pharmaceutical formulation comprising a human anti-TNFa antibody, or antigen-binding portion thereof, having increased bioavailability upon subcutaneous administration into a subject. The formulation may comprise a therapeutic protein, such as a human anti-TNF-alpha antibody, or an antigen-binding portion thereof, or a biosimilar thereof.