S51 A View of Epilepsy Study: A Development for New Anti-Epileptic Drugs S51-1 The possibility of histamine H3 receptor antagonists as new antiepileptic drugs S51-2 Epilepsy with heterozygous SCN1A mutations of voltage-gated sodium channels S51-3 Consequences of pentylenetetrazole kindling on psychic function in the mice S51-4 Clinical evidences on the drug interactions between conventional and novel antiepileptic drugs