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: Anaesthesia
Shoest acting NDMR 
Select and explain. 
A. Succinyl choline, B. Rapac uroni um, C. Atracurium, D. Pancuronium
B: Rapac uroni um
Answer: B: Rapac uroni um 
Explanation: Rapacuronium Among the given options Rapacuronium is the shoest ating drug. Rapacuronium has been withdrawn from the market because it produces intense bronchospasm in a significant number of patients. Alcuronium is a relatively sho acting muscle relaxant. Always remember this