Question Summary:
Menstruation by pills

Question Detail:

A woman in ‘iddah of divorce used pills to stimulate her menstruation. Between every cycle there were fifteen or more days of tuhr. Has the ‘iddah terminated? 

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
The ‘iddah of divorce is three menstrual cycles. The ‘iddah has terminated by stimulation if there were fifteen or more days of tuhr (no blood) between the menstrual cycles.[1]
And Allah Ta’āla Knows Best
Hisham Dawood
Student Darul Iftaa
Chicago, USA 
Checked and Approved by,
Mufti Ebrahim Desai.
Daruliftaa.net