This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti Microbial, Subject name: Pharmacology
Gynaecomastia is a side effect of all, EXCEPT : 
Select and explain. 
A. Digitalis, B. Ketoconazole, C. Rifampicin, D. Spironolactone
C: Rifampicin
Answer: C: Rifampicin 
Explanation: Ans. is 'c' Rifampicin Drugs causing GynecomastiaKetoconazole*Calcium channel blockers*Digitalis*Estrogens*Ethionamide*Griseofuloin*INHMethyldopa*Phenytoin*Reserpine*Spironolactone*Testosterone*