Speedy Alka-Seltzer, an animated puppet who sang and danced in television commercials for the popular antacid from 1954 to 1964, became one of the best-known product personifications in advertising ...

Alka-Seltzer is a common antacid used to relieve an upset stomach. Alka-Seltzer and other fizzing tablets produce carbon dioxide-filled bubbles when placed in water. As the carbon dioxide is produced, ...