I take these Nature Made Cranberry Supplement vitamins whenever I feel a bladder infection or unitary tract infection coming on. They absolutely do wonders for stopping the infections in their tracks! I've tried a few other brands of cranberry supplements and Nature Made is definitely in my top two! I absolutely believe that if you were to take these daily that they would prevent urinary tract infections and bladder infections. They work fantastically for me and I only use them when the symptoms start and I stop taking them again when the symptoms clear up. Since they work pretty quickly, a single bottle lasts me a good long time. They're priced very reasonably as well, especially considering how well they work. So, in conclusion, if you're looking for a great supplement to help with bladder and urinary tract health I would definitely recommend these vitamins!