Fig. 5
Serum phosphorus level following coadministration of ferric citrate hydrate and calcium carbonate. Temporal transition at (a) pH 2 and (b) pH 7. Area under the curve from 0 to 2 h (AUC0–2 h) of serum phosphorus level at (c) pH 2 and (d) pH 7. Each dot shows the mean value ± standard error, and each column shows the mean value + standard error of 9–12 cases at pH 2 (11 cases for normal, 12 cases for control, 11 cases for ferric citrate hydrate, 10 cases for calcium carbonate, and 9 cases for combination) and 9–12 cases at pH 7 (11 cases for normal, 10 cases for control, 12 cases for ferric citrate hydrate, 9 cases for calcium carbonate, and 11 cases for combination)