All of the following drugs are used in prophylaxis of migraine, except:
Propanolol
Flunarizine
Tapiramate
Levetiracetam
Drugs approved by the FDA for migraine prophylaxis are propranolol, timolol, sodium valproate and methysergide. Other used drugs are amitriptyline, noriptyline, verapamil, phenelzine, gabapentine and cyproheptadine. Ref: Harrisons 16th Edition, Page 93 (table 14-11)