<prompt> Which teratogen causes deafness?IsotretinoinChloroquineAlcoholWarfarin  <response>: Teratogenic drugs which cause deafness-. Tetracycline, minocycline, erythromycin,lsotretinoin, alcohol, phenytoin, thalidomide ESSENTIALS of MEDICAL PHARMACOLOGY SEVENTH EDITION -K D TRIPATHI Page:854 