Review Question - QID 214257

A 65-year-old man presents to his physician due to a tremor affecting his right hand. He began noticing a tremor while watching television approximately one year prior to presentation. He notices that his tremor improves when he is engaging in activities, such as typing on the computer or playing sports. The tremor makes him feel self-conscious, and he feels it has been affecting his quality of life. He at times feels lightheadedness when rising from a sitting position. He has a past medical history of hypertension, which is adequately managed with amlodipine. His blood pressure is 130/85 mmHg, pulse is 76/min, and respirations are 16/min. On physical examination, the patient has a resting tremor only affecting his right hand, characterized by supination and pronation movements. His tremor improves upon finger-to-nose testing, where he has no evidence of dysmetria. There is also notable resistance of his right upper extremity when passively flexed, and it is worsened when he is drawing a circle with his left finger in the air. Which of the following is the most appropriate treatment for this patient’s symptoms?