25 Upon administration of rituximab at a dose of 375 mg/ m2 as an intravenous infusion at weekly intervals for 8 doses to 37 patients with NHL, the mean Cmax increased with each successive infusion, spanning from a mean of 243 µg/ mL (range, 16 – 582 µg/ mL) after the first infusion to 550 µg/ mL (range, 171 – 1177 µg/ mL) after the eighth infusion.