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Lithium 150 mg. Lithium (Eskalith Â® , Eskalith CR Â® , Lithobid Â®) is a medication used for the treatment of bipolar disorder. It is available by prescription only and comes in several different forms and strengths, including:1  Lithium carbonate 150 mg capsules. Lithium carbonate 300 mg tablets. 2  Lithium carbonate 300 mg extended-release tablets (Lithobid). 3  Lithium carbonate 450 mg extended-release tablets (Eskalith CR). 4  Lithium citrate syrup, containing 8 mEq lithium per 5 mL, which is equivalent to 300 mg lithium carbonate per 5 mL or per teaspoonful.
Lithium salts have been used in medical practice for about 150 years. Lithium salts were first used to treat gout. It was noted in the 1880s that lithium was somewhat effective in the treatment of depression, and in the 1950s lithium was seen to improve the symptoms of bipolar disease.urpose. Lithium is commonly used to treat mania and bipolar depression (manic-depression or bipolar disorder). Less commonly, lithium is used to treat certain mood disorders, such as schizoaffective disorder and aggressive behavior and emotional instability in adults and children.