This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Half life of dobutamine is - 
Select and explain. 
A. 120 sec, B. 200 sec, C. 20 sec, D. 20 min
A: 120 sec
Answer: A: 120 sec 
Explanation: Ans. is 'a' i.e., 120 sec For dobutamine i) Onset of action ---> after 1-2 min. ii) Peak action between 1-20 iii) Duration of action < 10 min. Half life -*2 min.