Fluid for peritoneal dialysis

A method for administering peritoneal dialysis therapy to a patient in need thereof, comprising a step of injecting a fluid into the peritoneal cavity of the patient, said fluid being free of glucose and comprising sodium chloride, calcium chloride, and magnesium chloride along with sodium lactate or sodium bicarbonate in an effective amount sufficient for regulating the ionic concentration of said fluid such that it is close to that of a human body fluid and, as an effective ingredient, cyclo{→6)-α-D-glucopyranosyl-(1→3)-α-D-glucopyranosyl-(1→6)-α-D-glucopyranosyl-(1→3)-α-D-glucopyranosyl-(1→}, cyclo{→6)-α-D-glucopyranosyl-(1→4)-α-D-glucopyranosyl-(1→6)-α-D-glucopyranosyl-(1→4)-α-D-glucopyranosyl-(1→}, or a mixture thereof, in an effective amount sufficient for improving body-fluid removability, biocompatibility, and storage stability of said fluid.