What is the therapeutic range for Lithium levels in the blood?

The therapeutic range for lithium levels in the blood is crucial for managing conditions such as bipolar disorder. A lithium level between 0.4 and 1.4 mEq/L is typically considered therapeutic, as it is where the medication is effective in stabilizing mood without causing significant side effects or toxicity. Levels below this range may not provide adequate therapeutic effects, making it difficult to control symptoms. Conversely, levels exceeding this range can lead to toxicity, manifesting as symptoms such as tremors, confusion, and, in severe cases, seizures or renal failure.

This range is well established in clinical practice, and maintaining lithium levels within this therapeutic window is essential for the safety and efficacy of treatment. Understanding this range helps both healthcare providers and patients to monitor and adjust dosages appropriately to avoid adverse effects while ensuring the medication's effectiveness.