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(sodium phosphate monobasic monohydrate, USP, and sodium phosphate dibasic anhydrous, USP) Tablets
There have been rare, but serious reports of acute phosphate nephropathy in patients who received oral sodium phosphate products for colon cleansing prior to colonoscopy. Some cases have resulted in permanent impairment of renal function and some patients required long-term dialysis. While some cases have occurred in patients without identifiable risk factors, patients at increased risk of acute phosphate nephropathy may include those with increased age, hypovolemia, increased bowel transit time (such as bowel obstruction), active colitis, or baseline kidney disease, and those using medicines that affect renal perfusion or function (such as diuretics, angiotensin converting enzyme [ACE] inhibitors, angiotensin receptor blockers [ARBs], and possibly nonsteroidal anti-inflammatory drugs [NSAIDs]). See WARNINGS.
It is important to use the dose and dosing regimen as recommended (pm/am split dose). See DOSAGE AND ADMINISTRATION.
Visicol (sodium phosphate monobasic monohydrate, USP, and sodium phosphate dibasic anhydrous, USP) is a purgative used to clean the colon prior to colonoscopy. Visicol Tablets are white to off-white compressed tablets, with a monogram “I” on each side of the upper surface and a plain lower surface. Each tablet contains 1.102 grams of sodium phosphate monobasic monohydrate, USP and 0.398 grams of sodium phosphate dibasic anhydrous, USP for a total of 1.5 grams of sodium phosphate per tablet. Inert ingredients include microcrystalline cellulose (MCC), NF; magnesium stearate, NF; and colloidal silicon dioxide, NF. Visicol is gluten-free.
The structural and molecular formulae and molecular weights of the active ingredients are shown below:
- Sodium phosphate monobasic monohydrate, USP
Molecular Formula: NaH2PO4 • H2O Molecular Weight: 137.99
- Sodium phosphate dibasic anhydrous, USP
Molecular Formula: Na2HPO4 Molecular Weight: 141.96
Visicol Tablets are for oral administration only.
What are the possible side effects of sodium biphosphate and sodium phosphate (Fleet Enema, Fleet Enema for Children, OsmoPrep, Visicol)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using sodium biphosphate and sodium phosphate and call your doctor at once if you have a serious side effect such as:
- rectal bleeding;
- no bowel movement after use;
- sores or ulcers around your rectum;
- seizure (black-out or convulsions);
- fast, slow, or uneven heart rate;
- urinating less than...
What are the precautions when taking sodium phosphate monobasic monohydrate, sodium phosphate dibasic anhydrous (Visicol)?
Last reviewed on RxList: 3/20/2013
This monograph has been modified to include the generic and brand name in many instances.
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