(dexamethasone sodium phosphate) Injection, USP
Hexadrol® Phosphate Injection (dexamethasone sodium phosphate injection, USP) is a water-soluble inorganic ester of dexamethasone which produces a rapid response even when injected intramuscularly.
Dexamethasone Sodium Phosphate, C22H28FNa2O8P, has a molecular weight of 516.41 and chemically is Pregn-4-ene-3, 20-dione, 9-fluoro-11, 17-dihydroxy-16-methyl-21 (phosphonooxy)-, disodium salt, (11β, 16α).
It occurs as a white to creamy white powder, is exceedingly hygroscopic, is soluble in water and its solutions have a pH between 7.5 and 10.5. It has the following structural formula:
Hexadrol® Phosphate Injection is available in 4 mg/mL and 10 mg/mL concentrations.
Each mL of Hexadrol® Phosphate Injection 4 mg/mL, contains dexamethasone sodium phosphate, USP equivalent to 4 mg dexamethasone phosphate; 1 mg sodium sulfite; 10 mg benzyl alcohol (preservative). Made isotonic with sodium citrate. pH adjusted with citric acid or sodium hydroxide.
Each mL of Hexadrol® Phosphate Injection 10 mg/mL, contains dexamethasone sodium phosphate, USP equivalent to 10 mg dexamethasone phosphate; 1.5 mg sodium sulfite; 10 mg benzyl alcohol (preservative). Made isotonic with sodium citrate. pH adjusted with citric acid or sodium hydroxide.
Last reviewed on RxList: 8/8/2014
This monograph has been modified to include the generic and brand name in many instances.
Additional Hexadrol Information
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