In spite of the cost, I had a doctor who wanted me to try this and I wanted, too, because I've heard great things. On my third month, started with 200 mg, then 400 mg. This month, 200 mg at 10 a.m. and 200 at 2 p.m. It's just not doing anything and I am so disappointed. It' 5 p.m. and I need to sleep. So disappointed.