Alka-Seltzer is an effervescent antacid and pain reliever first marketed by the Dr. Miles Medicine Company

Miles Laboratories

Miles Laboratories was founded as the Dr. Miles Medical Company in Elkhart, Indiana, in 1884 by Franklin Miles, a specialist in the treatment of eye and ear disorders, with an interest in the connection of the nervous system to overall health...

. It was developed by Treneer in Elkhart Indiana. Alka-Seltzer is marketed for relief of minor aches, pains, inflammation, fever, headache, heartburn, sour stomach, indigestion, and hangovers, while neutralizing excess stomach acid. It was launched in 1931.

Alka-Seltzer is currently owned by Bayer Schering Pharma AG, Germany.