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  • Basic Info
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Generic: potassium acid phosphate
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It is used to treat high pH levels in the urine

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What is this medicine?

PHOSPHORUS SALTS (FOS fer uhs sawlts) is used to treat high pH levels in the urine. It is used to prevent calcium kidney stones. This medicine can also work with some antibiotics for urinary tract infections.

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

They need to know if you have any of these conditions:
  • high levels of calcium in the blood
  • high levels of phosphate in the blood
  • kidney disease
  • phosphate stones
  • an unusual or allergic reaction to phosphorus salts, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast- feeding

How should I use this medicine?

Take this medicine by mouth. 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.

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

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.

What may interact with this medicine?

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

This medicine may also interact with the following medications:

  • antacids containing aluminum, magnesium, or calcium
  • aspirin and aspirin- like medicines
  • cyclosporine
  • diuretics
  • eplerenone
  • medicines for blood pressure like captopril, enalapril, lisinopril
  • potassium supplements, salt substitutes, or low- salt milk
  • vitamin D supplements

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