Beemans gum

Beeman's Pepsin Gum from the American Chicle Company
A pack of Beemans Chewing Gum purchased in 2019 in the USA.

Beemans gum (originally Beeman's Gum, see image at right) is a chewing gum formulated by Ohio physician Edward E. Beeman in the late 19th century. It originally contained pepsin, but no longer does.