Leader Effervescent Antacid & Pain Relief - 36 count Sale! from 579 918 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Leader Effervescent Antacid & Pain Relief Contains Aspirin (NSAID) and Sodium Bicarbonate Original Flavor Compare to Alka-Seltzer Original 36 Effervescent tablets Qty available:100 Tweet