Get relief from your symptoms with this Prelief Dietary Supplement 120 Caplets. If acidic foods bother your bladder, the acid in those foods may be giving you all that trouble. Trigger foods include coffee, fruits and juices, tomato sauce, wine and many others whose acidity is often not immediately obvious until the effects are felt. It's free of gluten and yeast, as well as drug-free. This has no side effects, making it very safe for use.