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': 'Which of the following antineoplastic drug is used to prevent synechiae formation after endoscopic nasal procedures \nSelect and explain. \nA. Actinomycin, B. Mitomycin, C. Epirubicin, D. Pentostatin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Topical Mitomycin - C\xa0is used to prevent synechiae formation after endoscopic nasal procedures.\nIt is an antitumor antibiotic which acts by inhibiting Topoisomerase - II. It is used topically to avoid systemic side effects.\nMitomycin is used for anal carcinoma, bladder carcinoma and laryngotracheal stenosis.', 'role': 'assistant'}]