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
Long term use of which of the following drug is most likely associated with development of tremors? 
Select and explain. 
A. Propofol, B. Salbutamol, C. Betaxolol, D. Timolol
B: Salbutamol
Answer: B: Salbutamol 
Explanation: Salbutamol is beta-2 agonist, preferred in acute bronchial asthma attackMost common side effect associated with the agent is Tremor