Jazaki Allah khayran
Though I see that it is harmful for a woman to take such pills since it is a natural stage each woman should pass monthly. Moreover, taking such pills could cause her dizziness,bleeding, bad moods,.. etc
These medicines could mess up the hormones in woman's body. That's why I don't recommend it, esp for an unmarried woman.
The scholars-alhumdulillah- had said that if it doesn't cause harm unless she is need to take these pills to perform her Umra or Hajj..
God only knows best.