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
Which of the following drug is commonly used for community acquired pneumonia in OPD? 
Select and explain. 
A. Vancomycin, B. Ceftriaxone, C. Azithromycin, D. Streptomycin
C: Azithromycin
Answer: C: Azithromycin 
Explanation: Ans: C. AzithromycinRef: n e u m o n ia- i n- a d u I t s -in -t h e - o u tp atie n t - s e tt in g H 4Only one drug which is active orally i.e. Azithromycin.We require OPD based treatment; hence Azithromycin is the best answer here.