Priadel tablets, available in 300mg, 400mg, and 450mg strengths, contain lithium carbonate as the active ingredient. This medication is prescribed for the treatment of bipolar disorder, also known as manic-depressive disorder. By restoring the balance of certain neurotransmitters in the brain, it helps to stabilize mood and reduce the intensity of mood swings. Priadel tablets are also offered under the brand names Intalith, Licab, and Lithosun.