omaveloxolone will lessen the extent or effect of ethinylestradiol by affecting hepatic/intestinal enzyme CYP3A4 metabolism.ferrous fumarate will lessen the extent or influence of delafloxacin by cation binding in GI tract. Modify Therapy/Watch Closely. Oral delafloxacin type chelates with alkaline earth and changeover metallic cations. Administer