This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
Which one of the following drugs is not a long acting neuromuscular blocking agent? 
Select and explain. 
A. Doxacurium, B. Mivacurium, C. Pancuronium, D. Pipecuronium
B: Mivacurium
Answer: B: Mivacurium 
Explanation: Mivacurium is a sho acting drug with duration of action is 15-30 minutes. All the other drugs are long acting. Drug. Duration of action Pancuronium. 60-120min Doxacurium. 60-120 min Pipecuronium. 50-100min From KD Tripati 7th edition Page no 352