Prevent a Cold with Alka-Seltzer (Mar, 1938)
This ad would probably be less effective if people realized that sodium acetyl salicylate is just aspirin.
Sneeze No. 1, The First Sign of a Cold
THIS EFFECTIVE WAY TO CHECK COLDS
AT the first sign of a cold, just drop one or two Alka-Seltzer tablets into a glass of water. When they bubble up and dissolve, drink the crystal clear, pleasant-tasting solution. Its beneficial action starts immediately. Continue using Alka-Seltzer according to the directions for colds as explained in the direction sheet in every package of Alka-Seltzer.
Since it is a recognized fact that most colds are accompanied by an over-acid condition which may be retarding nature in her battle against the complaint, Alka-Seltzer is especially helpful because it acts to restore your normal alkaline balance. And because Alka-Seltzer contains an analgesic (sodium acetyl salicylate) it gives prompt relief from the dull achy feeling of a cold. Thus Alka-Seltzer gives relief in TWO ways.