This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscle relaxants, Subject name: Anaesthesia
Laudanosine is metabolite of - 
Select and explain. 
A. Cisatracurium, B. Atracurium, C. Pancuronium, D. Gallamine
B: Atracurium
Answer: B: Atracurium 
Explanation: Laudanosine is the teiary metabolite produced during Hoffman's degradation of Atracurium . Laudanosine crosses blood brain barrier and produces convulsions.