Lithium Carbonate is a white, light alkaline powder with molecular formula Li2CO3 and molecular weight 73.89. Lithium is an element of the alkali-metal group with atomic number 3, atomic weight 6.94 and an emission line at 671 nm on the flame photometer.
Each extended-release tablet for oral administration contains 450 mg of lithium carbonate. In addition, each tablet contains the following inactive ingredients: Alginic Acid, Corn Starch, Magnesium Stearate, Povidone, and Yellow Iron Oxide. Lithium Carbonate Extended-Release Tablets 450 mg are designed to release a portion of the dose initially and the remainder gradually; the release pattern of the extended release tablets reduces the variability in lithium blood levels seen with the immediate release dosage forms.
This product meets USP Drug Release Test 2.