OSP products ‘should not be prescribed at all’
A 62-year-old woman preparing for a colonoscopy followed her doctor’s orders and took a large dose of an oral sodium phosphate (OSP) solution to cleanse her bowel before the procedure. It wasn’t an unusual order. Many physicians either prescribe OSP pills or solutions for their patients or recommend over-the-counter OSP products. However, the patient’s kidneys began to fail. Doctors were able to partially resolve the problem, but the woman was left with stage 4 chronic kidney disease.