Aspergum is the United States trademark name for an analgesic chewing gum, whose active ingredient is aspirin.
The Aspergum trademark is currently owned by Insight Pharmaceuticals,[2] the same company that produces the aspirin- and caffeine-based Anacin.
[3] In December 1927, Frank M. Dillard and William C. Nalle formed the Dillard-Nalle company and sought U.S. trademark protection for Aspergum.
It was significant in the recognition of aspirin's antithrombotic effect, when general practitioner Lawrence Craven reported in 1953 that patients who chewed Aspergum as an analgesic after tonsillectomy tended to bleed more easily.
[citation needed] As of January 2016, Retrobrands USA LLC has obtained the trademark and plans to re-launch the brand.