Sodium Phosphate, Monobasic, Monohydrate And Sodium Phosphate, Dibasic, Anhydrous
FDA Drug Information • Also known as: Sodium Phosphates
- Brand Names
- Sodium Phosphates
- Route
- INTRAVENOUS
- Dosage Form
- INJECTION, SOLUTION
- Product Type
- HUMAN PRESCRIPTION DRUG
Description
DESCRIPTION Sodium Phosphates Injection, USP, 3 mM P/mL (millimoles/mL), is a sterile, nonpyrogenic, concentrated solution containing a mixture of monobasic sodium phosphate and dibasic sodium 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 mL contains 276 mg of monobasic sodium phosphate, monohydrate and 142 mg of dibasic sodium phosphate, anhydrous (equivalent to 268 mg of dibasic sodium phosphate, heptahydrate). One mM of phosphorus weighs 31 mg, and the product provides 93 mg (approximately 3 mM) of phosphorus/mL plus 92 mg (4 mEq) of sodium/mL. Note: 1 mM P = 1 mM PO 4 . It contains no bacteriostat, antimicrobial agent or added buffer. The pH is 5.5 (5.0 to 6.0). The osmolar concentration is 7 mOsmol/mL (calc). The solution is intended as an alternative to potassium phosphate to provide phosphorus for addition to large volume infusion fluids for intravenous use. It is provided as a 5 mL, 15 mL and 50 mL partial fill single-dose vial; when lesser amounts are required, the unused portion should be discarded with the entire unit. Monobasic Sodium Phosphate, USP (monohydrate) is chemically designated NaH 2 PO 4
What Is Sodium Phosphate, Monobasic, Monohydrate And Sodium Phosphate, Dibasic, Anhydrous Used For?
INDICATIONS AND USAGE Sodium Phosphates Injection, USP, 3 mM P/mL is indicated as a source of phosphorus, for addition to large volume intravenous fluids, to prevent or correct hypophosphatemia in patients with restricted or no oral intake. It is also useful as an additive for preparing specific parenteral fluid formulas when the needs of the patient cannot be met by standard electrolyte or nutrient solutions. The concomitant amount of sodium (Na + 4 mEq/mL) must be calculated into total electrolyte dose of such prepared solutions.
Dosage and Administration
DOSAGE AND ADMINISTRATION Sodium Phosphates Injection, USP, 3 mM P/mL is administered intravenously only after dilution and thorough mixing in a larger volume of fluid . The dose and rate of administration are dependent upon the individual needs of the patient. Serum sodium, phosphorus and calcium levels should be monitored as a guide to dosage. Using aseptic technique, all or part of the contents of one or more vials may be added to other intravenous fluids to provide any desired number of millimoles (mM) of phosphorus. In patients on total parenteral nutrition, approximately 12 to 15 mM of phosphorus (equivalent to 372 to 465 mg elemental phosphorus) per liter bottle of TPN solution containing 250 g dextrose is usually adequate to maintain normal serum phosphorus, though larger amounts may be required in hypermetabolic states. The amount of sodium and phosphorus which accompanies the addition of sodium phosphate also should be kept in mind, and if necessary, serum sodium levels should be monitored. The suggested dose of phosphorus for infants receiving TPN is 1.5 to 2 mM P/kg/day. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. See PRECAUTIONS.
Side Effects (Adverse Reactions)
ADVERSE REACTIONS Adverse reactions involve the possibility of phosphorus intoxication. Phosphorus intoxication results in a reduction of serum calcium and the symptoms are those of hypocalcemic tetany. See WARNINGS . To report SUSPECTED ADVERSE REACTIONS, contact American Regent, Inc. at 1-800-734-9236 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Warnings and Precautions
WARNINGS Sodium Phosphates Injection, USP, 3 mM P/mL must be diluted and thoroughly mixed before use. To avoid phosphorus intoxication, infuse solutions containing sodium phosphate slowly. Infusing high concentrations of phosphorus may result in a reduction of serum calcium and symptoms of hypocalcemic tetany. Calcium levels should be monitored. Solutions containing sodium ions should be used with great care, if at all, in patients with congestive heart failure, severe renal insufficiency and in clinical states in which there exists edema with sodium retention. In patients with diminished renal function, administration of solutions containing sodium ions may result in sodium retention. WARNING: This product contains aluminum that may be toxic. Aluminum may reach toxic levels with prolonged parenteral administration if kidney function is impaired. Premature neonates are particularly at risk because their kidneys are immature, and they require large amounts of calcium and phosphate solutions, which contain aluminum. Research indicates that patients with impaired kidney function, including premature neonates, who receive parenteral levels of aluminum at greater than 4 to 5 mcg/kg/day accumulate aluminum at levels associated with central nervous system and bone toxicity. Tissue loading may occur at even lower rates of administration.
Contraindications
CONTRAINDICATIONS Sodium phosphate is contraindicated in diseases where high phosphorus or low calcium levels may be encountered, and in patients with hypernatremia.
Overdosage
OVERDOSAGE In the event of overdosage, discontinue infusions containing sodium phosphate immediately and institute corrective therapy to restore depressed serum calcium and to reduce elevated serum sodium levels. See WARNINGS , PRECAUTIONS and ADVERSE REACTIONS .
How Supplied
HOW SUPPLIED Sodium Phosphates Injection, USP, 3mM P/mL is supplied as a clear, colorless solution as per below. Unit of Sale Concentration Unit of Use NDC 0517-7305-25 Tray containing 25 vials 15 mM P/5 mL (3 mM P/mL) containing 20 mEq Na + /5 mL (4 mEq/mL) NDC 0517-7305-01 5 mL Single-Dose Plastic Vial NDC 0517-7315-25 Tray containing 25 vials 45 mM P/15 mL (3 mM P/mL) containing 60 mEq Na + /15 mL (4 mEq/mL) NDC 0517-7315-01 15 mL Single-Dose Plastic Vial NDC 0517-7350-25 Tray containing 25 vials 150 mM P/50 mL (3 mM P/mL) containing 200 mEq Na + /50 mL (4 mEq/mL) NDC 0517-7350-01 50 mL Single-Dose Plastic Vial Each container is partially filled to provide air space needed for complete vacuum withdrawal of the contents into the I.V. container. Store at 20 to 25°C (68 to 77°F). [See USP Controlled Room Temperature.] RQ1105-A Rev. 01/2024 ARL Logo
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.