This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Adverse Drug Effect, Subject name: Pharmacology
Gynaecomastia is side effect of all, EXCEPT : 
Select and explain. 
A. Ranitidine, B. Cimetidine, C. Spironolactone, D. Ketoconazole
A: Ranitidine
Answer: A: Ranitidine 
Explanation: Ans. is 'a' i.e. Ranitidine You must have noticed till now the number of repetitions this topic has, so learn the drugs causing gynecomastia well.