Carbamazepine (CAS 298-46-4) is a tricyclic compound that functions primarily as a voltage-gated sodium channel blocker By stabilizing the inactivated state of sodium channels it reduces neuronal excitability and inhibits repetitive firing of action potentials Carbamazepine is widely utilized in research to model and investigate mechanisms of anticonvulsant activity synaptic transmission modulation and ion channel pharmacology Its established action on sodium channels makes it a valuable tool for studies involving neuronal hyperexcitability and related neurological disorders