I was on it for 4 plus years. It worked great for a while, then I had to go up from 60mg to 80mg a few months ago. It still didn't completely control my symptoms 100% so my Dr. wanted me to add a smaller dose in the afternoon when I hit my lull. Each strength cost me $50 as my insurance doesn't like me taking it. $100 a month and still no guarantee of symptom control didn't sound like a good option to me, so I switched to yyvanse 50 mg a week ago. True the vyvanse doesn't last 24 hours like strattera was supposed to but it is less expensive, and my symptoms don't return for over 12 hours which is better than strattera did. I am gradually reducing my dose of strattera over the next 10 days.