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
Oral vancomycin may be given in: March 2012, March 2013 
Select and explain. 
A. Plague, B. Prostatitis, C. Tularemia, D. Pseudomembranous colitis
D: Pseudomembranous colitis
Answer: D: Pseudomembranous colitis 
Explanation: Ans: D i.e. Pseudomembranous colitis Drugs and uses Tetracyclines are highly effective in both bubonic and pneumonic plague Cotrimoxazole is especially valuable in prostatitis, because trimethoprim is concentrated in prostate Streptomycin is the drug of choice for tularaemia Given orally, vancomycin is the second choice drug (to metronidazole) for antibiotic associated pseudomembranous enterocolitis (caused by Cl. Difficile)