Suffer no moreget fast relief of heartburn, upset stomach, acid indigestion with headache and body aches from this antacid and pain reliever. Effervescent antacid and pain is an easy-to-use solution for everyday digestive issues. Unlike other antacids, Alka-Seltzer Original contains an analgesic for pain accompanied by heartburn and acid indigestion. Single dose packs in a convenient dispenser box are an ideal choice for the office; place them in a kitchen or common area, so everyone has access.