The FDA also said it was concerned about similar non-prescription treatments, such as Fleet Phospho-soda, made by C.B. Fleet Co. of Lynchburg,
Va. These treatments also shouldn't be used for bowel cleansing, and will get new warnings. At lower doses, however, they are safe for use as laxatives, the FDA said.
Patients routinely take oral sodium phosphate products -- either prescription or over the counter -- to clean the intestines before a colonoscopy and other medical procedures.