The Rumble Ball condenses various chemicals into a spherical yellow pill, similar to a jawbreaker in appearance. It is easily crushed with a single bite.
Once ingested, the drug immediately "distorts the wavelength" of the user's Devil Fruit-enhanced biochemistry, creating a number of new abilities. In Chopper's case, nearly all of these entail special transformations that emphasize and combine different traits from his three "natural" Zoan forms.
What if other zoan users eat the boog- I mean rumble ball
That means...
