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Lanthanum carbonate

Generic Name: lanthanum carbonate (LAN than um CAR bo nayt)
Brand Name: Fosrenol
Physician reviewed lanthanum carbonate patient information - includes lanthanum carbonate description, dosage and directions.
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Drug Information:
Lanthanum carbonate 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. Lanthanum carbonate may also be used for purposes not listed in this medication guide. You should not use lanthanum carbonate if you have a bowel obstruction or severe constipation. lanthanum carbonate may cause severe bowel obstruction or a perforation (a hole or tear) in your intestines. Your risk is higher if you have ever had stomach or intestinal problems including ulcers, cancer, surgery, or a bowel obstruction. Learn more

Lanthanum carbonate Side Effects

Lanthanum carbonate Side Effects

In Summary

Commonly reported side effects of lanthanum carbonate include: dialysis graft complication, nausea, and vomiting. Other side effects include: dialysis graft occlusion, and abdominal pain. See below for a comprehensive list of adverse effects.

For the Consumer

Applies to lanthanum carbonate: oral powder, oral tablet chewable

Along with its needed effects, lanthanum carbonate may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking lanthanum carbonate:

Incidence not known

  • Bloody, black, or tarry stools
  • bone pain
  • constipation, severe
  • difficulty having a bowel movement
  • itching skin or rash
  • loss of appetite
  • seizures
  • severe stomach pain, cramping, or burning
  • trouble breathing
  • unusual tiredness or weakness
  • vomiting of material that looks like coffee grounds, severe and continuous
  • vomiting, severe

Get emergency help immediately if any of the following symptoms of overdose occur while taking lanthanum carbonate:

Symptoms of overdose

  • Headache

Some side effects of lanthanum carbonate may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

  • Stomach pain

Incidence not known

  • Belching
  • heartburn
  • indigestion
  • stomach discomfort or upset
  • tooth injury

For Healthcare Professionals

Applies to lanthanum carbonate: oral powder for reconstitution, oral tablet chewable


The most common adverse reactions included nausea, vomiting, and abdominal pain.


Nausea, diarrhea, and vomiting occurred more frequently among patients taking the oral powder formulation than those receiving the chewable tablets (18% versus 7%).

Very common (10% or more): Nausea (up to 37%), vomiting (up to 27%), diarrhea (up to 24%), abdominal pain (up to 17%), constipation (up to 15%)

Common (1% to 10%): Dyspepsia, flatulence

Uncommon (0.1% to 1%): Gastroenteritis, eructation, indigestion, irritable bowel syndrome, dry mouth, stomatitis, loose stools, esophagitis, tooth disorder

Postmarketing reports: Tooth injury chewing the tablet, intestinal perforation, intestinal obstruction, ileus, subileus


Common (1% to 10%): Hypocalcemia

Uncommon (0.1% to 1%): Hypercalcemia, hyperglycemia, hyperphosphatemia, hypophosphatemia, anorexia, appetite increased, thirst


Common (1% to 10%): Bronchitis, rhinitis

Uncommon (0.1% to 1%): Laryngitis


Uncommon (0.1% to 1%): Hyperparathyroidism

Serum parathyroid concentrations may fluctuate depending on a patient's serum calcium, phosphate and vitamin D status. This drug has not been shown to have any direct effects on PTH secretion.


Postmarketing reports: Allergic skin reactions (skin rashes, urticaria, and pruritus)


The effects of this drug on the bones of patients undergoing dialysis have been evaluated in studies of up to 4.5 years duration. Compared with standard treatments including calcium carbonate, no differences in adverse effects on the musculoskeletal system, including fractures, were observed.

Uncommon (0.1% to 1%): Arthralgia, myalgia, osteoporosis


Uncommon (0.1% to 1%): Alopecia, increased sweating


Uncommon (0.1% to 1%): Vertigo, asthenia, fatigue, malaise


Uncommon (0.1% to 1%): Chest pain, peripheral edema


Uncommon (0.1% to 1%): Eosinophilia

Nervous system

Very common (10% or more): Headache (up to 22%)

Uncommon (0.1% to 1%): Dizziness, taste alteration


Very common (10% or more): Dialysis graft occlusion (up to 25%)

Editorial References and Review

Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.

Source: Drugs.com Lanthanum Carbonate