Alka Seltzer

There is a business legend about how Alka Seltzer doubled its sales. The heartburn and indigestion product had seen sales decline into the 1960s and was in need of a jump start. Their ad agency at the time came up with the idea of telling its customers to take a double-dose of the tablets. The campaign was a huge success as Alka Seltzer sales and profits doubled.
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