I went to Labor and Delivery with contractions 4 min. apart .. and then within 2 hrs. I was in full blown labor on my own (1 week after my due date) and was dilated to 4 cm (my water broke on its own 1 hr. after being there) and by that point (2 hrs of hard labor) I was begging for the epidural .. and finally got it! (the anestesiologist was in with an emergency c-section and couldn't tend to me) .. and right after the epidural they gave me the patocin (which the patocin started HARD contractions 2 minutes apart) and I had the baby out in 7 hrs.
(total of 9, with 2 hrs before the patocin .. and 7 hrs. after the patocin)
I've never had patocin without having the epidural first .. but my OB's nurse did (and a couple other people) and they literally have WAR stories about it .. it's supposedly really painful. I was in a lot of pain even with the epidural .. I don't think I would have been able to manage without it (but my baby did have a really big head .. he's in the 95 percentile .. so that might have made it worse

The patocin is like regual contractions they just make them come quicker so you dilate quicker .. I didn't have any complications whatsoever with the patocin (or epidural) .. but I would definitely get the epidural if you are getting patocin!
*I actaully dilated from 4cm-10cm within 3 hrs of the patocin being put in the IV (but my water had already brokend and I had already been in labor on my own) all the time after that was pushing that big head out!

*also, make sure your cervix is at least at 2cm before they give you the patocin . . my doctor said if you get the patocin before you are at 2cm .. then there is a good chance it will end in c-section because your cervix will not thin out just from the patocin.
congrats on the little one! God bless!