Is it permissible for a woman who takes birth control pills daily at 5 PM, and can only delay them by one hour without negatively affecting her health, to break her fast in Ramadan if the time for the Maghrib prayer is two hours after the time she takes her pills?

If a woman uses birth control pills for a legitimate reason, and it is possible to delay taking them until after Iftar or Ramadan, she must do so. If it is not possible, and not taking them at the prescribed time would cause illness, worsen an existing illness, or delay healing, then it is permissible for her to take them and break her fast. In this case, she must make up for the days she missed fasting.