Get fast relief of heartburn, upset stomach, and acid indigestion with headache or body aches. Alka-Seltzer has been around for more than 80 years. Unlike Tums or Mylanta, H-2 blockers such as Pepcid, and PPIs like Prilosec and Nexium, Alka-Seltzer Original contains an analgesic for pain accompanied by heartburn and acid indigestion. Neutralizes acid fast on contact! Our flagship product, effervescent tablets dissolve in water to bring you fast, fizzy relief. Hear it, see it, and feel it working. Fast relief of heartburn, upset stomach, and acid indigestion with headache or body aches. Alka-Seltzer has provided trusted, effective, effervescent relief for more than 80 years. Contains an analgesic for pain accompanied by heartburn and acid indigestion. Made in Mexico Fully dissolve 2 tablets in 4 ounces of water before taking. Adults and children 12 years and over: 2 tablets every 4 hours or as directed by a doctor - do not exceed 8 tablets in 24 hours. Adults 60 years and over: 2 tablets every 4 hours or as directed by a doctor - do not exceed 4 tablets in 24 hours. Children under 12 years: consult a doctor ? Bayer