I've been using tums for years now to help with acid reflux, heartburn and surprisingly enough, hiccups. As soon as I feel acid coming on or heartburn, I chew 2-3 tablets and in minutes I can feel it getting better. Yes, for me they work on hiccups. Not sure why but whenever I get hiccups I chew one tablet and they go away. The flavors are great, not too fruity but just enough to enjoy chewing. I'm not a big fan of the mint flavored ones as they are too minty for me.