Last go PG I did castor oil. The very wonderful midwives had back up doctors and had I been less concerned about the rules they had to adhere by and therefore felt less pressured I would have avoided it.
Did two attempts. First did nothing but give me the runs.... the second did bring on strong and regular contractions that were sustained until I got to the hospital then died promptly. DS was not positioned well and that combined with leaving my birthing mind and becoming tense in the hospital setting was enough to end what could have been productive labor.