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Medications

Potassium Phosphate oral tablets

What is this medicine?

POTASSIUM PHOSPHATE (poe Tass i um FOS fate) is used to make the urine more acidic. This helps prevent some kidney stones. This medicine can also work with some antibiotics for urinary tract infections.

How should I use this medicine?

Take this medicine by mouth with food. Follow the directions on the package or prescription label. Dissolve this medicine in 6 to 8 ounces of water as directed. Allow tablets to soak in water for 2 to 5 minutes or more. If part of the tablet does not dissolve, it may be crushed and then the solution stirred vigorously. Shake or stir well before taking. Take your medicine at regular intervals. Do not take your medicine more often than directed. Do not stop taking except on your doctor's advice.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue

  • breathing problems

  • confusion

  • fast, irregular heartbeat

  • muscle twitching

  • numbness or tingling in hands or feet

  • seizures

  • unusually weak or tired

  • weakness, heaviness of legs

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • bone or joint pain

  • diarrhea

  • nausea, vomiting

  • stomach pain

What may interact with this medicine?

Do not take this medicine with any of the following medications:

  • certain diuretics such as spironolactone, triamterene

  • eplerenone

  • sevelamer

  • sodium polystyrene sulfonate

This medicine may also interact with the following medications:

  • antacids containing aluminum, magnesium, or calcium

  • aspirin and aspirin-like medicines

  • certain medicines for blood pressure or heart disease like lisinopril, losartan, quinapril, valsartan

  • medicines that lower your chance of fighting infection such as cyclosporine, tacrolimus

  • NSAIDs, medicines for pain and inflammation, like ibuprofen or naproxen

  • other potassium or phosphorus supplements

  • salt substitutes

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Protect from light. Throw away any unused medicine after the expiration date.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • Addison's disease

  • diabetes

  • heart disease

  • high levels of potassium or phosphorus in the blood

  • kidney disease

  • an unusual or allergic reaction to potassium, phosphorus, other medicines, foods, dyes, or preservatives

  • pregnant or trying to get pregnant

  • breast-feeding

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular checkups. You may need lab work done regularly.

If you have kidney stones, you may pass old stones when starting this medicine.

Side effects like stomach upset, nausea and diarrhea happen more when this medicine is not mixed properly or taken without food. Follow mixing instructions exactly each time you take a dose.


NOTE:This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider. Copyright© 2018 Elsevier