Proper Use

Drug information provided by: Merative, Micromedex®

Take this medicine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.

This medicine should come with a Medication Guide. Read and follow these instructions carefully. Ask your doctor if you have any questions.

It is best to take this medicine with or immediately right after meals.

Chew or crush the tablet completely before swallowing. Do not swallow the tablet whole.

If you cannot chew the tablets, use the oral powder form of this medicine. Sprinkle it on a small quantity of applesauce or other similar food. Mix and take it immediately. Do not mix it with water or other liquid. Do not store mixture for later use.

Follow carefully any diet program your doctor may recommend.

If you take levothyroxine, an antacid that contains aluminum, calcium, or magnesium, an antibiotic medicine (eg, ampicillin, tetracycline), blood pressure medicine, statins, or anti-malarials, take them 2 hours before or after taking lanthanum.

If you are taking antibiotic medicines (eg, ciprofloxacin or levofloxacin), take them at least 1 hour before or 4 hours after you take lanthanum. If you need help deciding the best time to take your other medicines, ask your doctor or pharmacist.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For oral dosage forms (chewable tablets or powder):
    • For high phosphorus levels in the blood:
      • Adults—At first, 1500 milligrams (mg) per day, divided into small doses. Your dose will be determined and adjusted by your doctor depending on how high your blood phosphorus level is.
      • Children—Use is not recommended.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Ask your healthcare professional how you should dispose of any medicine you do not use.

Portions of this document last updated: April 01, 2024

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