Diclegis, how long did it take to work?

Kasey
Hi moms,  I have been extremely sick and dry heaving/throwing up.  So I called my doctor and she prescribed me Diclegis.  I used it for the first time last night and it didn't do a thing.  I was still up all night dry heaving and vomiting.  For those who have tried it, how long did it take to work? Should I give it a few more days to work before calling my doctor?