Use

Monitoring free valproic acid is crucial in therapy to ensure therapeutic drug levels are maintained while minimizing the potential for toxicity. In conditions such as uremia, or when co-administered with other highly protein-bound drugs, free valproic acid levels provide a more accurate reflection of the active drug concentration in the bloodstream. This is particularly important in cases of hypoalbuminemia, pregnancy, renal or hepatic impairment, and in geriatric patients, where total valproic acid measurements might underrepresent the free active fraction.