Widely used as an active pharmaceutical ingredient in the treatment of epilepsy, bipolar disorder, and migraine prevention. It is effective in stabilizing mood and controlling seizures by modulating sodium channels and increasing gamma-aminobutyric acid (GABA) levels in the brain. Also investigated for use in neuropathic pain management and as a histone deacetylase inhibitor in cancer research. Commonly formulated in tablets, capsules, and oral solutions for clinical use.