I'm still vomiting at least once a day at 14 weeks - Maxolon did nothing for me and Zofran worked for an hour or two after taking it... I also had the generic which only cost me $5 for 4 10mg tabs.
I manage to keep down the little folic acid tablets but couldn't take the multi so I used to have the kids chewable vitamins - they went down better. They've got some folate in them - might be better than nothing...
Hang in there... this is worth it in the end (it's what I cling to)