ɪt dˈʌz ðɪs baɪ blˈɑːkɪŋ ðə sˈɪnθəsˌɪs ʌv ˈɜːɡəstɚɹˌɑːl baɪ ɪnhˈɪbɪɾɪŋ ʌvðɪ ˈɛnzaɪm lˈænəstɚɹˌɑːl fˈoːɹtiːn ˈælfədˈɛmɪθˌɪleɪz ænd ɐkjˌuːmjʊlˈeɪʃən ʌv mˈɛθɪlˌeɪɾᵻd stˈɛɹɑːl pɹɪkˈɜːsɚz.
It does this by blocking the synthesis of ergosterol by inhibiting of the enzyme lanosterol 14α-demethylase and accumulation of methylated sterol precursors.