Hi! Sorry it took so long for me to get back to you, off the boards over the weekend! Actually Bentyl and Miralax are very different drugs. Bentyl is an antispasm drug, its supposed to help your colon stay "relaxed" and not spasm. It doesn't work for me but sounds like it is helping you. Miralax is a laxative. It works by pulling water into your colon. The miralax is safe to take while pregnant, it doesn't cross the placenta. I do not know about the Bentyl.
-------------------- Taking it one day at a time.....