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
Gynaecomastia is an adverse effect of all of the following drugs except : 
Select and explain. 
A. Spironolactone, B. Finasteride, C. Cortisol, D. Cimetidine
C: Cortisol
Answer: C: Cortisol 
Explanation: None