FDA Alert: Oral Sodium Phosphate (OSP) Products for Bowel Cleansing

A rare, but serious form of kidney failure has been associated with the use of oral sodium phosphate (OSP) products (e.g., Fleet Phospho-soda solution, Fleet Accu-Prep solution, and Visicol tablets) for bowel cleansing. No cases of kidney failure have been associated with a recently approved OSP product (OsmoPrep tablets) for bowel cleansing.

This information reflects FDA’s preliminary analysis of data concerning this drug. FDA is considering, but has not reached a final conclusion about, this information. FDA intends to update this sheet when additional information or analyses become available.