In March 1988, Glaxo commissioned a Gallup Poll titled “Heartburn Across America,” It found 44% of the adult population suffered heartburn monthly. Zantac could be prescribed for heartburn by then, but plenty of antacids were available that didn’t require a prescription. Glaxo promoted the survey on television and in print. The ads noted that heartburn and other symptoms of chronic reflux could signal diseases such as ulcers and suggested seeing a physician.