potassium phosphate/sodium acid phosphate (Rx)

Brand and Other Names:K-Phos M.F., K-Phos No. 2, more...K-Phos Neutral, Neutra-Phos, Uro-KP Neutral
  • Print

Dosing & Uses

AdultPediatric

Dosage Forms & Strengths

potassium phosphate/sodium phosphate

tablet

  • 126mg/67mg
  • 250mg/298mg
  • 250mg/160mg

Hypophosphatemia

K-Phos Neutral: 1-2 tablets PO q4hr

Phos-NaK: 1 packet mixed with 75 mL water or juice

Low Urinary Phosphate

1-2 tablets PO q6hr

Dosage Modifications

Renal impairment: Use with caution in patients with chronic renal disease or renal function impairment

Dosage Forms & Strengths

potassium phosphate/sodium phosphate

tablet

  • 126mg/67mg
  • 250mg/298mg
  • 250mg/160mg

Hypophosphatemia

<4 years: Safety and efficacy not established

≥4 years: K-Phos Neutral, 1 tablet PO q6hr; Phos-NaK, 1 packet PO q6hr mixed with 75 mL water or juice

Low Urinary Phosphate

<4 years: Safety and efficacy not established

≥4 years: 1-2 tablets PO q6hr

Next:

Interactions

Interaction Checker

and potassium phosphate/sodium acid phosphate

No Results

     activity indicator 
    No Interactions Found
    Interactions Found

    Contraindicated

      Serious - Use Alternative

        Significant - Monitor Closely

          Minor

            All Interactions Sort By:
             activity indicator 
            Previous
            Next:

            Adverse Effects

            Frequency Not Defined

            Confusion

            Dizziness

            Gastrointestinal (GI) upset

            Headache

            Low urine output

            Lower-extremity swelling

            Mild laxative effect

            Numbness or tingling

            Shortness of breath

            Tachycardia

            Thirst

            Weakness or heaviness of legs

            Weight gain

            Previous
            Next:

            Warnings

            Contraindications

            Patients with infected phosphate stones

            Severe renal impairment

            Hyperphosphatemia

            Addison disease

            Hyperkalemia

            Infected urolithiasis

            Struvite stone formation

            Cautions

            Cardiac disease, especially in digitalized patients

            Adrenal insufficiency

            Acute dehydration

            Renal disease

            Extensive tissue breakdown, as in severe burns

            Myotonia congenita

            Cirrhosis of liver

            Edema

            Hypertension

            Hypoparathyroidism

            Acute pancreatitis

            Hepatic impairment

            Hypernatremia

            Metabolic alkalosis

            Previous
            Next:

            Pregnancy & Lactation

            Pregnancy category: C

            Lactation: Unknown whether drug is distributed in breast milk; caution is advised

            Pregnancy Categories

            A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

            B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

            C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

            D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

            X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

            NA: Information not available.

            Previous
            Next:

            Pharmacology

            Mechanism of Action

            Acidifies urine; essential in physiologic processes

            Elimination

            Excretion: Kidney

            Previous
            Next:

            Administration

            Oral Administration

            Take with full glass of water

            Avoid antacids containing aluminum, magnesium, or calcium

            May precipitate passage of existing kidney stones

            Previous
            Next:

            Images

            Previous
            Next:

            Formulary

            FormularyPatient Discounts

            Adding plans allows you to compare formulary status to other drugs in the same class.

            To view formulary information first create a list of plans. Your list will be saved and can be edited at any time.

            Adding plans allows you to:

            • View the formulary and any restrictions for each plan.
            • Manage and view all your plans together – even plans in different states.
            • Compare formulary status to other drugs in the same class.
            • Access your plan list on any device – mobile or desktop.

            The above information is provided for general informational and educational purposes only. Individual plans may vary and formulary information changes. Contact the applicable plan provider for the most current information.

            Tier Description
            1 This drug is available at the lowest co-pay. Most commonly, these are generic drugs.
            2 This drug is available at a middle level co-pay. Most commonly, these are "preferred" (on formulary) brand drugs.
            3 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs.
            4 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs or specialty prescription products.
            5 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs or specialty prescription products.
            6 This drug is available at a higher level co-pay. Most commonly, these are "non-preferred" brand drugs or specialty prescription products.
            NC NOT COVERED – Drugs that are not covered by the plan.
            Code Definition
            PA Prior Authorization
            Drugs that require prior authorization. This restriction requires that specific clinical criteria be met prior to the approval of the prescription.
            QL Quantity Limits
            Drugs that have quantity limits associated with each prescription. This restriction typically limits the quantity of the drug that will be covered.
            ST Step Therapy
            Drugs that have step therapy associated with each prescription. This restriction typically requires that certain criteria be met prior to approval for the prescription.
            OR Other Restrictions
            Drugs that have restrictions other than prior authorization, quantity limits, and step therapy associated with each prescription.
            Additional Offers
            Email to Patient

            From:

            To:

            The recipient will receive more details and instructions to access this offer.

            By clicking send, you acknowledge that you have permission to email the recipient with this information.

            Email Forms to Patient

            From:

            To:

            The recipient will receive more details and instructions to access this offer.

            By clicking send, you acknowledge that you have permission to email the recipient with this information.

            Previous
            Medscape prescription drug monographs are based on FDA-approved labeling information, unless otherwise noted, combined with additional data derived from primary medical literature.