 The study will last approximately 10 weeks. You will begin the study by taking 1 tablet of study medication topiramate 25 mg or placebo in the evening. This will be Day 1 of the study. After one week of this phase of the study, your study medication dose will be increased to 2 tablets topiramate 50 mg or placebo one tablet in the morning and one in the evening. Your study medication dose may continue to be increased until you have reached the dose level the study doctor determines to be appropriate for you, or, you are taking a maximum dose of 200 mgs per day of study medication topiramate or placebo. Your study doctor may adjust your study medication dose as necessary. Study medication will be provided in 25 mg tablets of topiramate or placebo. Medication is provided in child-resistant bottles. All bottles should be returned regardless of whether they are partial, empty or full at each visit. It is important that you follow your study doctor or his staffs instructions on when and how to take the study medication. You will be expected to visit your study doctor or his staff again on Day 28 Visit 3, Day 56 Visit 4 and Day 70 Visit 5 after beginning treatment. At Visit 5 Day 70, you will be given instructions about reducing your study medication gradually for the next week. 