piracetam , glycine , and the clinical antiepileptics valproate , phenacemide , phenytoin , carbamazepine , phenobarbital , diazepam , clonazepam , nitrazepam , and ethosuximide did not displace serotonergic radioligands , but melacimide showed some activity at 5-ht1 sites ( ic50 7-9 x 10 ( -5 ) m ) .
C0003299
antiepileptics
C0015043
ethosuximide