Pregnancy Risk Factor:  X (migraine prophylaxis)/D (all other indications)
No adjustment necessary though may cause levels to be misleading
Mild to moderate impairment: Not recommended for use in hepatic disease; clearance is decreased with liver impairment
Severe impairment: Use is contraindicated.
Valproic acid
Lamotrigine
Ethosuximide
Phenytoin
Valproate
Topiramate
Levetiracetam
Carbamazepine