This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
Drugs that act on microtubules are all except 
Select and explain. 
A. Colchicine, B. Vinblastine, C. Paclitaxel, D. Fluconazole
D: Fluconazole
Answer: D: Fluconazole 
Explanation: Ceain drugs bind to microtubules and thus interfere with their assembly or disassembly. These include colchicine, vinblastine, paclitaxel, and griseofulvin.Fluconazole inhibits the fungal cytochrome P450 enzyme 14a-demethylase.