Proper Use

Drug information provided by: Micromedex

For patients taking the tablet form of this medicine:

  • Do not swallow the tablet. Before taking, dissolve the tablet in ¾ to 1 glass (6 to 8 ounces) of water. Let the tablet soak in water for 2 to 5 minutes and then stir until completely dissolved.

For patients using the capsule form of this medicine:

  • Do not swallow the capsule. Before taking, mix the contents of 1 capsule in one-third glass (about 2½ ounces) of water or juice or the contents of 2 capsules in two-thirds glass (about 5 ounces) of water and stir well until dissolved.

For patients using the powder form of this medicine:

  • Add the entire contents of 1 bottle (2¼ ounces) to enough warm water to make 1 gallon of solution or the contents of one packet to enough warm water to make 1/3 of a glass (about 2.5 ounces) of solution. Shake the container for 2 or 3 minutes or until all the powder is dissolved.
  • Do not dilute solution further.
  • This solution may be chilled to improve the flavor; do not allow it to freeze.
  • Discard unused solution after 60 days.

Take this medicine immediately after meals or with food to lessen possible stomach upset or laxative action.

To help prevent kidney stones, drink at least a full glass (8 ounces) of water every hour during waking hours, unless otherwise directed by your health care professional.

Take this medicine only as directed. Do not take more of it and do not take it more often than recommended on the label, unless otherwise directed by your health care professional.

Dosing

The dose medicines in this class 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 these medicines. 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 potassium phosphates

  • For oral dosage form (solution):
    • To replace phosphorus lost by the body or to make the urine more acid or to prevent the formation of kidney stones in the urinary tract:
      • Adults and teenagers—The equivalent of 228 milligrams (mg) of phosphorus (2 tablets) dissolved in six to eight ounces of water four times a day, with meals and at bedtime.
    • To replace phosphorus lost by the body:
      • Children over 4 years of age—The equivalent of 228 mg of phosphorus (2 tablets) dissolved in six to eight ounces of water four times a day, with meals and at bedtime.
      • Children up to 4 years of age—The dose must be determined by your doctor.
  • For oral dosage forms (capsules or oral solution):
    • To replace phosphorus lost by the body:
      • Adults, teenagers, and children over 4 years of age—The equivalent of 250 mg of phosphorus (contents of 1 capsule) dissolved in two and one-half ounces of water or juice four times a day, after meals and at bedtime.
      • Children up to 4 years of age—Dose must be determined by your doctor.
  • For oral dosage forms (powder for oral solution):
    • To replace phosphorus lost by the body:
      • Adults, teenagers, and children over 4 years of age—The equivalent of 250 mg of phosphorus dissolved in two and one-half ounces of water four times a day, after meals and at bedtime.
      • Children up to 4 years of age—Dose must be determined by your doctor.

For potassium and sodium phosphates

  • For oral dosage form (solution):
    • To replace phosphorus lost by the body or to make the urine more acid or to prevent the formation of kidney stones in the urinary tract:
      • Adults and teenagers—The equivalent of 250 milligrams (mg) of phosphorus dissolved in eight ounces of water four times a day, after meals and at bedtime.
    • To replace phosphorus lost by the body:
      • Children over 4 years of age—The equivalent of 250 mg of phosphorus dissolved in eight ounces of water four times a day, after meals and at bedtime.
      • Children up to 4 years of age—Dose must be determined by your doctor.
  • For oral dosage forms (capsules or solution):
    • To replace phosphorus lost by the body:
      • Adults, teenagers, and children over 4 years of age—The equivalent of 250 mg of phosphorus (the contents of 1 capsule) dissolved in two and one-half ounces of water or juice four times a day, after meals and at bedtime.
      • Children up to 4 years of age—Dose must be determined by your doctor.
  • For oral dosage forms (powder for solution):
    • To replace phosphorus lost by the body:
      • Adults, teenagers, and children over 4 years of age—The equivalent of 250 mg of phosphorus dissolved in two and one-half ounces of water four times a day, after meals and at bedtime.
      • Children up to 4 years of age—Dose must be determined by your doctor.
  • For oral dosage forms (tablets for solution):
    • To replace phosphorus lost by the body:
      • Adults, teenagers, and children over 4 years of age—The equivalent of 250 mg of phosphorus (1 tablet) dissolved in eight ounces of water four times a day.
      • Children up to 4 years of age—Dose must be determined by your doctor.

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

Keep out of the reach of children.

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

Do not keep outdated medicine or medicine no longer needed.