Caterpillar on sacaca

I figure that this caterpillar must be looking for some medicine for a tummy ache. The tree is muirasacaca (Croton cajucara), noted for its antispasmodic properties. The bark of the tree has been used traditionally for menstrual pains, stomach aches and other ailments. In recent times, the chemical secrets of the tree have unveiled for the production of an over-the-counter medicine called Buscopan.