This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
Drugs used in management of migraine include the following except? 
Select and explain. 
A. Valproate, B. Ethosuximide, C. Topiramate, D. Verapamil
B: Ethosuximide
Answer: B: Ethosuximide 
Explanation: *Drugs that have been approved by the FDA for prophylactic treatment of migraine are propranolol,timolol,valproate,topiramate and methysergid Ref Harrison20th edition pg 2134