name Letrozole namespace https://bioinformatics.umg.eu/onkopus/drugon# parent Drug parent Aromatase_Inhibitors parent Triazoles parent Cytochrome_P-450_CYP2C19_Inhibitors parent Enzyme_Inhibitors parent Cytochrome_P-450_Enzyme_Inhibitors parent Estrogen_Antagonists parent Nitriles parent Hormone_Antagonists parent Steroid_Synthesis_Inhibitors parent Antineoplastic_Agents parent Hormones,_Hormone_Substitutes,_and_Hormone_Antagonists targets_at Cytochrome_P450_19A1