I would just be honest and ask the doctor. However, I will warn you, most doctors will not even induce until you are two weeks over due. If the doctor is confident that the baby's weight is up to par and ready for delivery that's one thing, but I was 5 days late, induced, and she was only 6 lb. 6 oz. Much smaller than expected! If the meds aren't working, I would contact the doctor and tell him they aren't working so you would rather not take them at all. Are there alternatives to helping reduce your bp? Bedrest? That is often suggested by doctors to help reduce stress and bp problems. Good luck with your delivery and try to relax! :)
P.S. Like Meagan wrote, I was induced and my daughter's heart rate began to drop each time I had a contraction. I also ended up having to have a c-section.