Morphine is a tertiary nitrogen base containing a phenanthrene nucleus; it has two hydroxyl groups, one phenolic and the other alcoholic (secondary). The sulfate salt occurs as white, feathery, silky crystals, cubical masses of crystals, or white, crystalline powder.
The chemical name of morphine sulfate is 7,8-didehydro-4,5α-epoxy-17-methylmorphinan-3,6α-diol sulfate (2:1) (salt), pentahydrate.
It has the following chemical structure:
(C17H19NO3)2 ∙ H2SO4 ∙ 5H2O M.W. 758.83
Morphine Sulfate Injection, USP is a sterile solution of morphine sulfate pentahydrate in Water for Injection, USP.
Morphine Sulfate Injection, USP is available in the following concentrations:
Each mL of Morphine Sulfate Injection, USP, Preservative Free (no bacteriostat or antioxidant added) contains 25 mg Morphine Sulfate in Water for Injection. Sulfuric acid added for adjustment of pH to 3.5 (2.5 to 6.5).
Each mL of Morphine Sulfate Injection, USP, (no bacteriostat added), contains 25 mg or 50 mg Morphine Sulfate, 0.75 mg Edetate Disodium, 1 mg Sodium Metabisulfite (added during manufacture) as an antioxidant, in Water for Injection. Sulfuric acid added for adjustment of pH to 3.5 (2.5 to 6.5).
NOTE: These products are intended for intravenous use only. They are not intended for intrathecal or epidural use. They are for use after dilution, not for direct infusion, and is intended as a single-dose unit. It contains no antimicrobial preservatives. When the dosing requirement is completed, the unused portion should be discarded in an appropriate manner.