This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Pharmacology
Which teratogen causes deafness? 
Select and explain. 
A. Isotretinoin, B. Chloroquine, C. Alcohol, D. Warfarin
A: Isotretinoin
Answer: A: Isotretinoin 
Explanation: Teratogenic drugs which cause deafness-. Tetracycline, minocycline, erythromycin,lsotretinoin, alcohol, phenytoin, thalidomide ESSENTIALS of MEDICAL PHARMACOLOGY SEVENTH EDITION -K D TRIPATHI Page:854 <a href="