Anyone on Reglan for morning sickness?

I was on diclegis but read online it had a major interference with my other medicine suboxone (side effect includes death) which concerned me that it could have harmed my baby and my doctor made in my eyes a careless and significant mistake by prescribing it. So now I am on Reglan and still having horrible morning sickness (I'm 18 weeks with identical twins) .. Anyone use this medicine and work? Anyone have any side effects such as increased heartburn? Thank you !