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Fosrenol
  • Treatments
  • Hyperphosphatemia of Renal Failure

Fosrenol

Generic name:lanthanum carbonateLAN-than-um-CAR-bo-nayt ]
Drug class:Phosphate binders

Medically reviewed by Philip Thornton, DipPharm. Last updated on Nov 2, 2020.

What is Fosrenol?

Fosrenol prevents the body from absorbing phosphate, allowing it to be removed from the body.

Fosrenol is used to lower phosphate levels in patients with end stage kidney disease. High levels of phosphate can make it hard for your body to absorb calcium, which can cause serious medical problems.

Fosrenol may also be used for purposes not listed in this medication guide.

Warnings

You should not use Fosrenol if you have a bowel obstruction or severe constipation.

Before you take Fosrenol, tell your doctor if you have a stomach ulcer, ulcerative colitis, Crohn's disease, diabetes, any type of bowel obstruction, or a history of colon cancer or intestinal surgery.

The chewable tablet should be chewed completely before you swallow it.

Take this medicine with food or immediately after eating.

Tell your doctor about all other medicines you use, especially antibiotics, seizure medication, heart or blood pressure medication, or a blood thinner.

If you also take thyroid replacement medication, take it at least 2 hours before or after taking Fosrenol. Do not take thyroid medication and lanthanum carbonate at the same time.

Avoid taking an antacid within 2 hours before or after you take lanthanum carbonate. Some antacids can make it harder for your body to absorb lanthanum carbonate.

Before taking this medicine

You should not use Fosrenol if you are allergic to lanthanum carbonate, or if you have:

  • a bowel obstruction or severe constipation.

To make sure Fosrenol is safe for you, tell your doctor if you have ever had:

  • a stomach ulcer;

  • any type of bowel obstruction;