ESKALITH contains lithium carbonate, 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.

ESKALITH Capsules: Each capsule, with opaque gray cap and opaque yellow body, is imprinted with the product name ESKALITH and SB and contains lithium carbonate, 300 mg. Inactive ingredients consist of benzyl alcohol, cetylpyridinium chloride, D&C Yellow No. 10, FD&C Green No. 3, FD&C Red No. 40, FD&C Yellow No. 6, gelatin, lactose, magnesium stearate, povidone, sodium lauryl sulfate, titanium dioxide, and trace amounts of other inactive ingredients.

ESKALITH CR Controlled-Release Tablets: Each round, yellow, biconvex tablet, debossed with SKF and J10 on one side and scored on the other side, contains lithium carbonate, 450 mg. Inactive ingredients consist of alginic acid, gelatin, iron oxide, magnesium stearate, and sodium starch glycolate.

ESKALITH CR Tablets 450 mg are designed to release a portion of the dose initially and the remainder gradually; the release pattern of the controlled release tablets reduces the variability in lithium blood levels seen with the immediate release dosage forms.

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