<unk>  is an analgesic, anti-epileptic agent that is FDA approved for the treatment of epilepsy, trigeminal neuralgia. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include hypertension, pruritus, rash, constipation, nausea, vomiting, xerostomia, asthenia, ataxia, dizziness, somnolence, blurred vision, nystagmus.
Carbamazepine
Oxcarbazepine
Eslicarbazepine acetate
Phenytoin 
Lamotrigine
Mesuximide
Oxiracetam
Levetiracetam 