This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy: General Principles, Subject name: Pharmacology
Griseofulvin is not useful in one of the following: 
Select and explain. 
A. Tinea capitis, B. Tinea cruris, C. Tinea versicolor, D. Tinea pedis
C: Tinea versicolor
Answer: C: Tinea versicolor 
Explanation: Ans. (C) Tinea versicolor(Ref: CMDT -2010/110)Griseofulvin is used for dermatophytoses including Tinea capitis, Tinea cruris, Tinea pedis, Tinea unguum and Tinea corporis etc.Tinea versicolor is caused by a yeast Malassezia furfur. It is treated by selenium sulfide and ketoconazole shampoo.