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potassium phosphate injection, USP Description


Potassium Phosphates Injection, USP 3 mM P/mL (millimoles/mL) is a sterile, nonpyrogenic, concentrated solution containing a mixture of mono- and dibasic potassium phosphate in water for injection.
    The solution is administered after dilution by the intravenous route as an electrolyte replenisher. It must not be administered undiluted.
    Each milliliter contains 224 mg of monobasic potassium phosphate, anhydrous and 236 mg of dibasic potassium phosphate, anhydrous. One mM of phosphorus weighs 31 mg and the product provides 93 mg (approximately 3 mM) of phosphorus/mL, plus 170.3 mg (4.4 mEq) of potassium/mL. Note: 1 mM P=1 mM PO4.
    It contains no bacteriostat, antimicrobial agent or added buffer. The osmolar concentration is 7.4 mOsmol/mL (calc.). The solution is intended as an alternative to sodium phosphate to provide phosphorus for addition to large volume infusion fluids for intravenous use.

    Monobasic Potassium Phosphate, NF (monopotassium phosphate), anhydrous is chemically designated KH2PO4, colorless crystals or white granular powder freely soluble in water.

    Dibasic Potassium Phosphate, USP (dipotassium phosphate), anhydrous is chemically designated K2HPO4, white granules very soluble in water.

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