Eslicarbazepine acetate (BIA 2-093) is an antiepileptic drug. It is a prodrug which is activated to eslicarbazepine (S-licarbazepine), an active metabolite of oxcarbazepine.[1]

It is being developed by Bial[2] and will be marketed as Zebinix or Exalief by Eisai Co. in Europe and as Stedesa by Sepracor[3] in America.

The European Medicines Agency (EMA) has recommended granting marketing authorization in 2009 for adjunctive therapy for partial-onset seizures, with or without secondary generalisation, in adults with epilepsy.[1] The U.S. Food and Drug Administration (FDA) announced on 2 June 2009 that the drug has been accepted for filing.[3]

Mechanism of action and indications

Eslicarbazepine acetate is a prodrug for S(+)-licarbazepine, the major active metabolite of oxcarbazepine.[4] Its mechanism of action is therefore identical to that of oxcarbazepine. [5] There may, however, be pharmacokinetic differences. Eslicarbazepine acetate may not produce as high peak levels of (S)-(+)-licarbazepine immediately after dosing as does oxcarbazepine which could theoretically improve tolerability.

Like oxcarbazepine, eslicarbazepine may be used to treat bipolar disorder and trigeminal neuralgia.


The first European PT 101732 .