I currently weigh 133.2 lbs and I am 5'6.5" or so. I just started taking gabapentin for nerve damage in my arm. I am taking 300 mg capsule once a day for a week, then two doses a day for a week, then three doses a day for a week. I live a very healthy lifestyle. I walk 30 minutes every day and am on a strict healthy eating plan. I also drink 10 cups of water every day.