Lithium Tablet is a prescription medicine used in the treatment of bipolar disorder and mania in adults. It is sometimes used to treat other behavioral disorders as well. It reduces the frequency of manic episodes and decreases the intensity of those episodes that might occur.Lithium Tablet should be taken with food.Side effects associated with the use of this medicine include tremor, slurred speech, uncoordinated body movements, nausea, acne, increased white blood cell count and memory impairment. It may also cause hair loss, enlarged thyroid gland, skin rash, and increased thirst. This medicine may also cause weight gain and to control it, you should have a balanced diet and exercise regularly.