[mikestew]

Some mouthwash has been implicated in oral cancers.

Listerine has offered an alcohol-free (alcohol being the concern for oral cancer) version for quite a while.

[ggm]

Presumably they still pay out on that, but I wonder if with sufficient shift in formulation and brand, they could get out of it?

[DL-Invariant]

AFAIK, they must pay for volumes of all products sold under the Listerine brand name, regardless of formulation.