Lanthanum Carbonate
Also known as: Fosrenol, Lantharenol, Renalzin
* **Administration:** Do not allow the animal to swallow tablets whole. Crush the tablets and mix them thoroughly with the animal's food. * **Timing:** It is crucial that this medication is given *with meals* so it can bind to the phosphorus in the food. * **Commercial Veterinary Products:** If using a specific veterinary gel/paste, follow the exact administration directions provided on the label. * **Side Effects:** Monitor for vomiting or loss of appetite and contact your veterinarian if these occur.
Dosage must be set by your veterinarian for your specific pet. Never give human medication or another pet’s prescription without veterinary guidance.
What it is used for
- Phosphate binder
- Phosphate binder (using Renalzin)
- Chronic kidney disease (Hyperphosphataemia)
- Chronic kidney disease (Hyperphosphataemia)
How it is given
Possible side effects
- Vomiting
- Nausea
- Inappetence
- None known according to the monograph
- Gastrointestinal upset (nausea, vomiting, diarrhea, or constipation) may occur (Clinical Pearl)
Cautions & contraindications
- Patients with non-intact GI tract (e.g., GI ulcers, colitis) - use with caution due to increased risk of systemic absorption
- Acute renal crisis (patients should be stabilized first)
- There are no listed absolute contraindications, but it should be used with caution in patients where the GI tract is not intact (e.g., GI ulcers, colitis) as there is an increased chance for oral absorption. Safe for use during pregnancy and nursing.
Drug interactions
- Allopurinol: Potential decreased absorption; separate dosing by 2 hours
- Chloroquine: Potential decreased absorption; separate dosing by 2 hours
- Corticosteroids: Potential decreased absorption; separate dosing by 2 hours
- Digoxin: Potential decreased absorption; separate dosing by 2 hours
- Ethambutol: Potential decreased absorption; separate dosing by 2 hours
- Fluoroquinolones: Potential decreased absorption; separate dosing by 2 hours
- H-2 Antagonists (ranitidine, famotidine): Potential decreased absorption; separate dosing by 2 hours
- Iron Salts: Potential decreased absorption; separate dosing by 2 hours
- Isoniazid: Potential decreased absorption; separate dosing by 2 hours
- Penicillamine: Potential decreased absorption; separate dosing by 2 hours
- Phenothiazines: Potential decreased absorption; separate dosing by 2 hours
Frequently asked questions
What is Lanthanum Carbonate used for in pets?
* **Administration:** Do not allow the animal to swallow tablets whole. Crush the tablets and mix them thoroughly with the animal's food. * **Timing:** It is crucial that this medication is given *with meals* so it can bind to the phosphorus in the food. * **Commercial Veterinary Products:** If using a specific veterinary gel/paste, follow the exact administration directions provided on the label. * **Side Effects:** Monitor for vomiting or loss of appetite and contact your veterinarian if these occur.
Is Lanthanum Carbonate safe for my pet?
Dosage must be set by your veterinarian for your specific pet. Never give human medication or another pet’s prescription without veterinary guidance.
This article is for general education and is not a substitute for professional veterinary advice. If your pet is unwell, please consult a veterinarian.
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