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: Pharmacology
[{'content': 'Antipseudomonal action is a characteristic of which of the following antimicrobials? \nSelect and explain. \nA. Cefopodoxime, B. Cefoperazone, C. Cefotetan, D. Ceforanide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cefoperazone is 3rd generation cephalosporin, which is active against gram positive as well as gram negative bacterias. It is one of the few antibiotics that have anti-pseudomonal action. It exes its action by inhibiting bacterial cell wall growth. Main adverse effect of this drug is Hypothrombinemia and Disulfiram reaction. Ref: Sherwood L. Gorbach, John G. Balett, Neil R. Blacklo (2004), Chapter 19, "Cephalosporins", In the book, "Infectious Diesases", 3rd Edition, Lippincott Publications, USA, Page 196', 'role': 'assistant'}]