What is a common symptom of Lithium toxicity at levels above 2.0 mEq/L?

A common symptom of lithium toxicity at levels above 2.0 mEq/L is slurred speech. When lithium levels in the body rise excessively, it can disrupt neurological function, leading to various cognitive and motor symptoms. Slurred speech is indicative of central nervous system involvement, highlighting the potential impact of high lithium levels on coordination and communication abilities.

Understanding lithium's mechanism is essential; it stabilizes mood primarily in bipolar disorder, but excessive amounts can interfere with normal neuronal activity, causing symptoms like confusion, tremors, and slurred speech. Recognizing these signs is crucial for timely medical intervention to avoid severe complications associated with lithium toxicity.