ðə mˌɛdɪkˈeɪʃən hɐz mˈɪkst pɹoʊdʒˈɛstoʊdʒˈɛnɪk ænd ˌæntɪpɹoʊdʒˈɛstoʊdʒˈɛnɪk æktˈɪvᵻɾi ðæt ˈɪz, ɪɾ ɪz ɐ pˈɑːɹʃəl ˈæɡənˌɪst ʌvðə pˌiːˈɑːɹ ɔːɹ ɐ sᵻlˈɛktɪv pɹoʊdʒˈɛstɚɹˌoʊn ɹᵻsˈɛptɚ mˈɑːdʒuːlˌeɪɾɚ ˌɛspˌiːˌɑːɹɹˈɛm ænd ɪz ɐ wˈiːk ˈæɡənˌɪst ʌvðɪ ˌeɪˈɑːɹ, ɔːɹ ɐn ˌænɐbˈɑːlɪk ˌændɹoʊdʒˈɛnɪk stˈɛɹɔɪd ˌeɪˌeɪˈɛs.
The medication has mixed progestogenic and antiprogestogenic activity – that is, it is a partial agonist of the PR or a selective progesterone receptor modulator (SPRM) – and is a weak agonist of the AR, or an anabolic–androgenic steroid (AAS).