This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
[{'content': 'Long term use of which of the following drug is most likely associated with development of tremors? \nSelect and explain. \nA. Propofol, B. Salbutamol, C. Betaxolol, D. Timolol', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Salbutamol is beta-2 agonist, preferred in acute bronchial asthma attackMost common side effect associated with the agent is Tremor', 'role': 'assistant'}]