- Dopamine agonists suppress cholinomimetic-induced tremulous jaw movements in an animal model of Parkinsonism: tremorolytic effects of pergolide, ropinirole and CY 208-243. Salamone, J.D., Carlson, B.B., Rios, C., Lentini, E., Correa, M., Wisniecki, A., Betz, A. Behav. Brain Res. (2005)