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 use for Prophylaxis of migraine include the following except? 
Select and explain. 
A. Sumitriptan, B. Valproate, C. Serotonergic drugs, D. TCAs
A: Sumitriptan
Answer: A: Sumitriptan 
Explanation: *TCA,beta blockers ,calcium channel blockers, valproate,topiramate , used for prophylaxis of migraine *Sumatriptan used for treatment of acute attack of migraine . Ref Harrison20th edition pg 2456