Do you think That if she goes on a Fast, the fast could open up a can of worms (medically)for her? Are you talking about a Water Fast or a Juice diet? Can she take her medicine on an empty stomach? What does the medicine bottle say? Even better, what does her Doctor say? I'm not at home with all of my Fasting/Juicing Books...so hang tight and I'll look it up for you..it's 5:15p.m. Central here, give me to 9 o'clock.. Jude