Ketoconazole Tablets USP 200 MG Ketoconazole Tablets USP 200 MG is widely recommended by doctors as antifungal medicine. Widely recommended for the treatment of several fungal infections of the skin, the medicine is highly effective against jock itch, athlete’s foot, ringworm and seborrhoea. This medicine belongs to a class of medicines called azole antifungal drugs. In addition, it also disrupts the fungal cell membranes to kill fungi and yeast.