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: Ophthalmology
Drugs used in treatment of herpes simplex keratitis include all except: 
Select and explain. 
A. Idoxuridine 0.1%, B. 5-Fluorouracil, C. Adenosine arabinoside, D. Pimarcin
D: Pimarcin
Answer: D: Pimarcin 
Explanation: Ans. Pimarcin