I was induced @ 40wk and 3 days with syntocin due to high BP and protein and blood in my urine. Within an hour of the syntocin started i had gas, then went to the morphone because I had to wait so long for the dr to eventually do the epidural. Best invention ever I say!! LOL By this time my contractions were less than a min apart and stayed that way until I delivered my dd 18 hours later. If i ever go back again for a second, forget the gas etc i'm going straight to the epidural! LOL