Di-Sodium Phosphate is an inorganic salt once used as an oral saline laxative to clear the bowel before colonoscopy. It pulls water into the intestines, prompting a bowel movement. Oral use has been sharply reduced or banned in many places because of serious safety problems, most notably acute phosphate nephropathy, a kidney injury triggered by fluid and electrolyte shifts. Today, lower-dose enema preparations are more common, where less is absorbed into the bloodstream. This ingredient is not suitable for everyday constipation. A doctor should direct any use for colon cleansing.
Watch for rapid changes in sodium, potassium, and phosphate blood levels. These shifts can disturb heart rhythm and kidney function. The FDA warns against taking oral sodium phosphate products without a prescription. People with kidney disease, heart conditions, bowel blockages, or those on diuretics or ACE inhibitors face greater danger.
Dose depends on the product and the medical situation. Narrow safety margins mean you should never self-dose the oral form. Adhere strictly to a healthcare providers directions.