Dangerous Drugs & Medical Devices
Oral Sodium Phosphates, OSP’s
Oral Sodium Phosphates, OSP’s, are oral medications used for bowel cleansing as preparation for a colonoscopy. Visicol® and OsmoPrep® are available only by a doctor’s prescription. Non-prescription OSP’s include Fleet Phospho Soda E-Z Prep Bowel Cleansing System and Fleet Phospho-Soda Oral Saline Laxative. Some patients have developed Acute Phosphate Nephropathy developing after using an Oral Sodium Phosphate product (OSP). Acute Phosphate Nephropathy is a severe injury to the kidney, in which deposits of calcium-phosphate crystals in the tubules, the tiny tubes that comprise much of the kidney. These crystals may cause irreversible and permanent damage to the kidneys. This very serious disorder has been seen to occur in patients who have no current kidney disease or malfunction, and no known risk factors that would increase the likelihood of developing a sudden-onset severe kidney disorder.