In clinical trials of Cymbalta, tremor was not reported at the 20
mg per day dose, but with 60
mg per day or 60
mg twice daily the incidence of tremor was 1% and 5% of the participants respectively.
Frequent neurological side effects of Wellbutrin include tremor. The incidence of tremor is high; roughly 20% of patients reported tremor during clinical trials , compared to about 8% taking a placebo.