ujm:
For sephardim (as I pointed out) the ramabam (and Lechorah the Mechaber as well) holds (like the Pri Chadash) there is no Mitzvas Purim for women (Seudah, Mishloach Manos or Matonos Levyonim). We are assuming like the Rema that there is a mitzva of seudah for women, and seudah on purim by definition would include drinking.