HuffPost receives a share from retailers on this page, which helps support our journalism. Prices and availability are subject to change. One bottle can help keep you headache-free for up to 55 glasses, depending on how many drops you use. Promising review: "I drank wine one night and did not use the drops. WOW, my IBS hit me like a knife! This proves that they really do work. I wish I had an option to give this product 10 stars!!!! I have had IBS for several years, and last fall, my IBS went