Most effective antacid: Gaviscon

Hello. Have you all tried taking antacids? I have also tried various types of antacids, and the most effective one seems to be FesTal. As a Korean, I believe everyone knows this antacid, and it seems to work quickly. I feel the most comfortable in my stomach after taking it. The ingredients are trustworthy because of that. It also has no side effects like nausea after taking it, so I prefer it the most. I always keep FesTal on hand and plan to continue using it in the future.