This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthesia, Subject name: Pharmacology
Which of the following drug does not act on neuromuscular junction? 
Select and explain. 
A. Succinylcholine, B. Dantrolene, C. Vecuronium, D. Mivacurium
B: Dantrolene
Answer: B: Dantrolene 
Explanation: Ans. (B) Dantrolene(Ref: Katzung 13th/e p467-468)Dantrolene is a directly acting muscle relaxant. It does not act at neuromuscular junction Neuromuscular blockersDepolarisingNon-depolarisingSChTubocurarineAtracuriumCis-atracuriumMivacuriumPancuroniumVecuroniumPipecuronium