QuestionWhat is the ruling on the woman using pills that prevent the monthly menstrual cycle during the days of Hajj? AnswerThere is no harm in that because it contains a benefit and a helpful advantage so that she can perform Tawaf with the people and so that she does not lose her group.
Shaikh Ibn Baz (Rahimahullah)
Reference: Fatawa Islamiyah Volume 4 Page 50