Potassium phosphate powder for solution

Generic Name: potassium phosphate (poe-TASS-ee-um FOS-fate)
Brand Name: Neutra-Phos-K

Potassium phosphate powder for solution is used for:

Preventing kidney stones. It may also be used for other conditions as determined by your doctor.

Potassium phosphate powder for solution is a urinary acidifier. It works by increasing the amount of acid in the urine, which lowers the pH of the urine. This may reduce the growth of some bacteria in the urine and help dissolve calcium kidney stones.

Do NOT use potassium phosphate powder for solution if:

  • you are allergic to any ingredient in potassium phosphate powder for solution
  • you have severe adrenal insufficiency (Addison disease), infected kidney stones, struvite stones, severe kidney damage, or high levels of phosphates or potassium in the blood
  • you are taking a potassium-sparing diuretic (eg, triamterene)

Contact your doctor or health care provider right away if any of these apply to you.

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Before using potassium phosphate powder for solution:

Some medical conditions may interact with potassium phosphate powder for solution. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

  • if you are pregnant, planning to become pregnant, or are breast-feeding
  • if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
  • if you have allergies to medicines, foods, or other substances
  • if you are on a sodium- or potassium-restricted diet
  • if you have heart disease or heart failure, kidney problems, myotonia congenita, swelling of the hands and feet, difficulty breathing due to swelling of the lungs, liver problems, severe burns, softening of the bones, high sodium levels in the blood, high blood pressure, an underactive adrenal gland, inflammation of the pancreas, or rickets
  • if you are dehydrated

Some MEDICINES MAY INTERACT with potassium phosphate powder for solution. Tell your health care provider if you are taking any other medicines, especially any of the following:

  • Aldosterone blockers (eg, eplerenone), angiotensin-converting enzyme (ACE) inhibitors (eg, enalapril), or potassium-sparing diuretics (eg, triamterene) because high potassium levels, possibly with irregular heartbeat or a heart attack, may occur

This may not be a complete list of all interactions that may occur. Ask your health care provider if potassium phosphate powder for solution may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

How to use potassium phosphate powder for solution:

Use potassium phosphate powder for solution as directed by your doctor. Check the label on the medicine for exact dosing instructions.

  • Potassium phosphate powder for solution is usually taken after meals and at bedtime. Ask your doctor when you should take potassium phosphate powder for solution.
  • Packet - Empty contents of 1 packet into one third of a glass of water (about 75 mL/2.5 ounces). Stir the solution vigorously until all particles are dissolved.
  • Bottle - Dissolve entire contents of 1 bottle in 1 gallon of water or other liquid (eg, milk, juice) and take as directed by your doctor. Do not add any additional liquid, but chill the solution if you have trouble drinking it. The solution may be stored for up to 60 days after mixing.
  • Do not take antacids containing aluminum, magnesium, or calcium with potassium phosphate powder for solution without checking with your doctor or pharmacist.
  • If you miss a dose of potassium phosphate powder for solution, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use potassium phosphate powder for solution.

Important safety information:

  • Potassium phosphate powder for solution may cause dizziness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to potassium phosphate powder for solution. Using potassium phosphate powder for solution alone, with certain other medicines, or with alcohol may lessen your ability to drive or perform other potentially dangerous tasks.
  • While taking potassium phosphate powder for solution, the possibility of passing old kidney stones is increased.
  • PREGNANCY and BREAST-FEEDING: If you become pregnant while taking potassium phosphate powder for solution, discuss with your doctor the benefits and risks of using potassium phosphate powder for solution during pregnancy. It is unknown if potassium phosphate powder for solution is excreted in breast milk. If you are or will be breast-feeding while you are using potassium phosphate powder for solution, check with your doctor or pharmacist to discuss the risks to your baby.

Possible side effects of potassium phosphate powder for solution:

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Abdominal pain; diarrhea; nausea; vomiting.

Seek medical attention right away if any of these SEVERE side effects occur:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); decreased urination; seizures; shortness of breath; unusual tiredness or weakness.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

If OVERDOSE is suspected:

Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately.

Proper storage of potassium phosphate powder for solution:

Store potassium phosphate powder for solution at room temperature, between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. The solution may be chilled after mixing and stored for up to 60 days. Keep potassium phosphate powder for solution out of the reach of children and away from pets.

General information:

  • If you have any questions about potassium phosphate powder for solution, please talk with your doctor, pharmacist, or other health care provider.
  • Potassium phosphate powder for solution is to be used only by the patient for whom it is prescribed. Do not share it with other people.
  • If your symptoms do not improve or if they become worse, check with your doctor.
  • Check with your pharmacist about how to dispose of unused medicine.

This information is a summary only. It does not contain all information about potassium phosphate powder for solution. If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other health care provider.

Issue Date: November 5, 2014
Database Edition 14.4.1.002
Copyright © 2014 Wolters Kluwer Health, Inc.

Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using this medicine.

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