Thank you guys! it's nice to hear others say that it took them awhile too! I have only been on it for about a week now. After being on it a week I got the stomach flu, and that was two days ago, so I stopped taking it for two days. Now I'm back on the prevacid. I sure hope I start feeling better within a couple more weeks. Thanks for the encouragement. It sure is hard living with an awful feeling in my stomach constantly.