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: Pharmacology
[{'content': 'TRUE statement regarding vancomycin is: \nSelect and explain. \nA. It is bcteriostatic, B. It has the advantage of high oral bioavailability, C. It is not susceptible to penicillinases, D. Staphylococcal enterocolits occurs commonly with its use', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Ref: KDT 6/e p732) Vancomycin is a glycopeptide bactericidal antibiotic that is administered by parenteral route. It is penicillinase resistant, thus can be used in MRSA infections. It is also used for the treatment of pseudomembranous colitis. Vancomycin is ineffective against pseudomonas.', 'role': 'assistant'}]