K-Phos Neutral Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
K-Phos Neutral (potassium and sodium phosphate) is a mineral supplement used to acidify the urine and lower the urinary calcium concentration. K-Phos Neutral may also increase the antibiotic effect of methenamine. K-Phos Neutral is also used as a phosphorus supplement to prevent and/or treat a phosphorus deficiency. K-Phos Neutral is available in generic form. Common side effects of K-Phos Neutral include nausea, vomiting, stomach pain, diarrhea, dizziness, or headache.
The adult dose of K-Phos Neutral is one or two tablets four times daily. For pediatric patients over 4 years of age, dose is one tablet four times daily. Under 4 years of age, use only as directed by a physician. K-Phos Neutral may interact with calcium and/or vitamin D supplements, potassium supplements or salt substitutes, diuretics (water pills), heart medications, or steroids. Tell your doctor all prescription and over-the-counter medications and supplements you use. During pregnancy K-Phos Neutral should be used only when prescribed. It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.
Our K-Phos Neutral (potassium and sodium phosphate) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
K-Phos Neutral in Detail - Patient Information: Side Effects
Stop taking potassium phosphate and sodium phosphate and seek emergency medical attention if you experience an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives).
Other, less serious side effects may also to occur. Nausea, vomiting, stomach pain, and diarrhea are among the most common. These side effects usually lessen after a few days of therapy. Notify your doctor if you develop these side effects.
If you have kidney stones, there is a possibility that you will pass old stones after starting treatment with potassium phosphate and sodium phosphate.
Less commonly, the following side effects have been reported:
- dizziness or confusion;
- weakness or heaviness of the legs;
- unusual tiredness or weakness;
- muscle cramps;
- numbness, tingling, pain, or weakness of the hands or feet;
- swelling of the feet or lower legs;
- unusual weight gain;
- increased thirst;
- decreased urine; or
- bone or joint pain.
Notify your doctor if you develop any of the side effects listed above.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for K-Phos Neutral (Potassium and Sodium Phosphate)
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
K-Phos Neutral Overview - Patient Information: Side Effects
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
When this medication is first started, there is a chance an old kidney stone will be passed.
Tell your doctor immediately if any of these unlikely but serious side effects occur: bone/joint aches, muscle cramps, stomach pain, swollen hands/legs/feet.
Tell your doctor immediately if any of these rare but very serious side effects occur: confusion, fast/irregular heartbeat, seizures, unusual weakness, tingling/numbness of the hands/feet, change in the amount of urine.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for K-Phos Neutral (Potassium and Sodium Phosphate)
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
K-Phos Neutral FDA Prescribing Information: Side Effects
Gastrointestinal upset (diarrhea, nausea, stomach pain, and vomiting) may occur with phosphate therapy. Also, bone and joint pain (possible phosphate-induced osteomalacia) could occur. The following adverse effects may be observed (primarily from sodium or potassium): headaches; dizziness; mental confusion; seizures; weakness or heaviness of legs; unusual tiredness or weakness; muscle cramps; numbness, tingling, pain, or weakness of hands or feet; numbness or tingling around lips; fast or irregular heartbeat; shortness of breath or troubled breathing; swelling of feet or lower legs; unusual weight gain; low urine output; unusual thirst.
Read the entire FDA prescribing information for K-Phos Neutral (Potassium and Sodium Phosphate)
Additional K-Phos Neutral Information
K-Phos Neutral - User Reviews
K-Phos Neutral User Reviews
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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