Mood-stabilising drug used in bipolar disorder. Narrow therapeutic index. Toxicity correlates with serum level. Trough level 12 hours post-dose.
| Sex | Age | Range | Notes |
|---|---|---|---|
| All | ≥ 18 yrs | 0.4 – 1 | Maintenance: 0.4–0.8; acute mania: 0.8–1.0; toxicity risk >1.5 |
⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.