Chemically, morphine sulfate is 7,8-didehydro-4,5α-epoxy-17-methylmorphinan-3,6α-diol sulfate (2:1) (salt) pentahydrate and has the following structural formula:
(C17H19NO3)2•H2SO4 Molecular Weight: 668.77
The molecular formula and molecular weight are based on the “anhydrous” form of the drug product
Each extended-release tablet, for oral administration contains 100 mg of morphine sulfate USP. In addition, each tablet contains the following inactive ingredients: cetostearyl alcohol, hydroxyethyl cellulose, hydroxypropyl cellulose, hypromellose, magnesium stearate, polyethylene glycol, polysorbate 80, synthetic black iron oxide, talc and titanium dioxide.