How much does K Phos Neutral cost?

Pricing for K Phos Neutral varies by insurance plan, dose, and pharmacy. Our database does not show a fixed cost because prices change faster than we can verify. For current pharmacy prices, check your insurance's formulary tier (in the prior-authorization section), use the GoodRx or Cost Plus Drugs deep links on this page, or ask your pharmacist to run a test claim. If a copay card is listed, it usually drops the out-of-pocket significantly for commercial insurance.

Does K Phos Neutral need prior authorization?

K Phos Neutral appears on 1 payer formulary in our database. PA requirements vary by payer — see the prior-authorization table on this page for specifics. In general, specialty and brand-name drugs are more likely to require PA than generic equivalents.

Is there a copay card or patient assistance program for K Phos Neutral?

We haven't verified an active copay card or PAP for K Phos Neutral in our current data. Check NeedyMeds or RxAssist for independent directories, or submit what you find via our "Report a broken link" form.

What is K Phos Neutral used to treat?

K Phos Neutral (generic: Sodium Phosphate, Dibasic, Anhydrous, Potassium Phosphate, Monobasic, and Sodium Phosphate, Monobasic, Monohydrate) is indicated for Phosphorus Metabolism Disorder. Click any condition name on this page for more detail.

Does K Phos Neutral have a generic version?

The generic name for K Phos Neutral is Sodium Phosphate, Dibasic, Anhydrous, Potassium Phosphate, Monobasic, and Sodium Phosphate, Monobasic, Monohydrate. Whether a generic is currently available depends on patent status — check the FDA Orange Book or ask your pharmacist. Generics are often substantially cheaper than brand-name drugs.

K Phos Neutral

Generic: Sodium Phosphate, Dibasic, Anhydrous, Potassium Phosphate, Monobasic, and Sodium Phosphate, Monobasic, Monohydrate

Verified·Apr 23, 2026

Manufacturer: Beach
NDC: 0486-1125
RxCUI: 200251
Route: ORAL
ICD-10 indication: E83.30

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About K Phos Neutral

What is this medication? K Phos Neutral is a prescription supplement that contains a combination of phosphorus, sodium, and potassium. Its primary purpose is to increase the levels of phosphate in the body for individuals who are deficient in this mineral due to specific health conditions. Phosphorus is essential for many physiological processes, including the maintenance of strong bones, the repair of tissues and cells, and the regulation of how the body stores and uses energy. This medication is also frequently used to help manage the chemical composition of the urine to prevent the development of calcium kidney stones. By increasing the amount of phosphate and pyrophosphate present in the urine, it helps inhibit the formation of crystals that lead to stones. Unlike urinary acidifiers, K Phos Neutral is formulated to provide phosphorus while maintaining a neutral urine pH.

Copay & patient assistance

Detailed copay and financial assistance information is not publicly available for this medication at this time. Please consult your pharmacist or the manufacturer's official patient support program for more details.

External links go directly to the manufacturer's portal. RxCopays does not receive compensation for referrals.

Compare pricing elsewhere

RxCopays doesn't sell drugs or take referral fees. Here are the transparent-pricing directories we recommend checking alongside your insurance formulary.

Cost Plus Drug Company

Mark Cuban's transparent-pricing pharmacy — manufacturer cost + 15% markup + $5 dispensing fee. No insurance needed. Search alphabetically for Sodium Phosphate, Dibasic, Anhydrous, Potassium Phosphate, Monobasic, and Sodium Phosphate, Monobasic, Monohydrate.

Browse Cost Plus medications →

GoodRx

Compare local pharmacy prices with GoodRx coupons. Use the price with your insurance or without — whichever is cheaper.

Lookup K Phos Neutral →

NeedyMeds

Independent nonprofit directory of patient assistance programs, copay cards, and charity co-pay foundations.

Search for Sodium Phosphate, Dibasic, Anhydrous, Potassium Phosphate, Monobasic, and Sodium Phosphate, Monobasic, Monohydrate →

RxAssist

PAP directory maintained by Volunteers in Health Care at Brown University. Free, no ads.

Search PAPs →

We deep-link because transparency helps patients. None of these partners pay RxCopays.

Prescribing information

From the FDA-approved label for K Phos Neutral. Official source: DailyMed (NLM) · Label effective Feb 23, 2023

Indications and usage

INDICATIONS AND USAGE K-PHOS® NEUTRAL increases urinary phosphate and pyrophosphate. As a phosphorus supplement, each tablet supplies 25% of the U.S. Recommended Daily Allowance (U.S.RDA) of phosphorus for adul t s and children over 4 years of age.

Dosage and administration

DOSAGE AND ADMINISTRATION K-PHOS® NEUTRAL tablets should be taken with a full glass of water, with meals and at bedtime. Adults: One or two tablets four times daily; Pediatric Patients over 4 years of age: One tablet four times daily. For Pediatric Patients under 4 years of age, use only as directed by a physician.

Contraindications

CONTRAINDICATIONS This product is contraindicated in patients with infected phosphate stones, in patients with severely impaired renal function (less than 30% of normal) and in the presence of hyperphosphatemia.

Drug interactions

Drug Interactions The use of antacids containing magnesium, aluminum, or calcium in conjunction with phosphate preparations may bind the phosphate and prevent its absorption. Concurrent use of antihypertensives, especially diazoxide, guanethidine, hydralazine, methyldopa, or rauwolfia alkaloid; or corticosteroids, especially mineralocorticoids or corticotropin, with sodium phosphate may result in hypernatremia. Calciumcontaining preparations and/or Vitamin D may antagonize the effects of phosphates in the treatment of hypercalcemia. Potassium-containing medications or potassium-sparingdiuretics may cause hyperkalemia. Patients should have serum potassium level determinations at periodic intervals.

Adverse reactions

ADVERSE REACTIONS 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.

Use in pregnancy

Pregnancy Teratogenic Effects Pregnancy Category C Animal reproduction studies have not been conducted with K-PHOS® NEUTRAL. It is also not known whether this product can cause fetal harm when administered to a pregnant woman or can affect reproductive capacity. This product should be given to a pregnant woman only if clearly needed.

Label text is reproduced as-is from the FDA-approved label. We do not paraphrase, summarize, or omit. Content above is for informational purposes only and is not medical advice. Always consult your prescribing clinician or pharmacist before making decisions about your medication.

Conditions we've indexed resources for

Click a condition to see copay cards, grants, and PA rules specific to it. For the full list of FDA-approved indications, see Prescribing information above.

Phosphorus Metabolism Disorder

Prior authorization & coverage

Payer	PA	Step therapy	Copay tier
— Medicare Part D	—	—	—

Payer

Step therapy

Copay tier

—

Medicare Part D

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Related drugs

How this page is sourced

Drug identity verified against openFDA NDC Directory.
Label text (when shown) originates from NLM DailyMed.
Copay and assistance URLs verified periodically; if you hit a broken link, tell us.