The best replacement for antacids is h2 blockers.

The best alternatives to antacids are rated as following:
★★★★★  h2 blockers
★★★  proton pump inhibitors
★★★  acid reducers
★★  acid blockers
★  sucralfate
★  mylanta
★  laxatives

Your alternative for antacids is not listed? Suggest!
Speaking about antacids, one probably shouldn't forget about simethicone.

Other search terms related to antacids and their ratings are:
★★★★★ simethicone
★★ alginic acid
★★ prilosec
★★ azithromycin
★ cipro
★ nexium
★ prevacid
★ omeprazole
other medications
iron pills
aciphex
You have in mind a companion for antacids and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of antacids in all years. Click on graph for more.
antacids
h2 blockers
proton pump inhibitors