Sodium Phosphates Injection, USP 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 ion 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.
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 particulary 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.
There is currently no manufacturer warning information available for this drug.
Sodium Phosphates Injection, USP, 3mM 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 intravenous fluid formulas when the needs of the patient cannot be met by standard electrolyte or nutrient solutions. The concomitant amount of sodium (4 mEq/mL) must be calculated into total electrolyte content of such prepared solutions.
Sodium Phosphates Injection, USP is a sterile, nonpyrogenic, concentrated solution containing a mixture of monobasic and dibasic sodium phosphate in Water for Injection. It must be diluted prior to administration.
Each mL of the solution consists of two phosphate salts provided as follows:
| Ingredient (s) | Phosphorus | Sodium |
| Monobasic Sodium Phosphate Monohydrate – 276 mg |
93 mg
or |
92 mg
or |
| Dibasic Sodium Phosphate Anhydrous – 142 mg |
3 mM | 4 mEq |
The solution contains no bacteriostatic agent or other preservative.
The solution is intended to provide phosphate ion: (PO4-3) for addition to large volume infusion fluids for intravenous use. Unused portions should be discarded.
