Is it permissible for a woman to take medication to stop menstrual bleeding for the purpose of intercourse, and are there any regulations for that, such as the husband's strong desire?

It is permissible for a woman to take a lawful medication to prevent menstruation in order to fast the entire Ramadan, or during Hajj and similar occasions, provided that it does not cause her any health harm. This must be confirmed by consulting specialized doctors.