I do not suffer from indigestion very often (any more)?..I did in the past but it seems that since I quit drinking and smoking it is hardly ever an issue......Alka-Seltzer was my go to drug when I needed something?..I quit using it because of the aspirin in it. I have found a great replacement, if you like effervescing ant-acids??Brioschi?..it is straight bicarbonate of soda with no aspirin??works great!!!!...Just mix a cap full in water and Walla!!!!...Tummy is all better