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: Anatomy
Which of the following statements about terbinafine is false 
Select and explain. 
A. Its activity is restricted to dermatophytes, B. It is effective in onchomyosis, C. It inhibits squalene epoxidase, D. It is used topically only
D: It is used topically only
Answer: D: It is used topically only 
Explanation: (Ref: KDT 6/e p765) Terbinafine is a CIDAL drug against dermatophytes. It can be administered orally or can be applied topically. It acts by inhibiting the enzyme squalene epoxidase resulting in accumulation of toxic squalene.