Instruct: Classify an Amazon review as either positive or negative.
Query: Caused Incredible Heartburn

The reviews for this product as a CURE for Heartburn and GERD were so enthusiastic across the web, that I really held out hope that this was "IT".I even ordered the item NEXT DAY DELIVERY.Took it at dinner with a medium sized pork chop , broccoli, and a few small potatoes. Within an hour my chest was on fire. The worse heartburn I had, had in months. Nothing relieved it. Not Tums, No-Reflux or Zantac. It only resolved itself the next day at about 3 pm.Be careful with any product containing HCI and Ox Bile if you have Acid Reflux. I wish it had worked.