Propranolol group
±, tremor, SD
No aspect of tremor improved significantly at day 5 and day 10 after application of propranolol, and there were no obvious differences for FTM subscales and total score, including tremor severity (day 5 [Fahn–Tolosa–Marin (FTM) clinical scale of ET patients before and after oral propranolol (mean ± SD)