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: Unknown
Which drug can be eliminated by nonenzymatic degradation- 
Select and explain. 
A. Atracurim, B. Pancuronium, C. Mivacurium, D. Dexacurium
B: Pancuronium
Answer: B: Pancuronium 
Explanation: (Refer: Morgan and Mikhail’s Clinical Anaesthesiology, 5th edition, pg no. 216, 269)

The unique feature of atracurium is inactivation in plasma by spontaneous non-enzymatic degradation (Hofmann elimination) in addition to that by alkaline ester hydrolysis
Consequently its duration of action is not altered in patients with hepatic/renal i9nsufficiency or hypodynamic circulation → preferred muscle relaxant for such patients as well as for neonates and the elderly
Atracurium is metabolized to laudanosine that is responsible for seizures.