See the ITC Project website at www.itcproject.org
By definition, acid reflux is a chronic condition in which acid from the stomach flows back into the lower esophagus, causing pain or tissue damage
Unless someone has any more information to dial in the date from the tobacco stamp, I think it's from between 1956 to 1980s (To me it looks more like 80s style packaging)
Many FDA-approved NRTs, including gum, patches, and lozenges, are available without a prescription, and may be used in combination with each other
There is sufficient consensus [26,27] that TSNAs are primarily responsible for harm caused by tobacco products associated with high causality of cancers of the mouth, pharynx, esophagus and respiratory system