This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
Which of the following propeies make pyridostigmine different from neostigmine 
Select and explain. 
A. It is more potent, B. It is longer acting, C. It produces less muscarinic side effects, D. It does not have any direct action on NM receptor
B: It is longer acting
Answer: B: It is longer acting 
Explanation: Ref-KDT 7/e p108 Pyridostigmine acts for 3 to 6 hours as compared to 0.5 to 2 hourshours dur of action of neostigmine. It is less impoant than neostigmine Rest of the propeies are similar to neostigmine