Me so confused abt this.
Medicine divided to men and women? Tf medicine is that?!
It's birth control that's only given to guys, but as Butterfly explained it some women put aphrodisiacs in it if they want to punish the male for whatever reason and they just watch them suffer without relief. From my understanding women have no real use for so it may have some negative effects and the soup is given to concubines that you don't want to have children with so someone like Feng Yu whose a main consort from a noble family wouldn't be given such a thing...it would be a sign that he's unfavored by his wife if she gave him birth control.
What? You feel guilty now, fucker?