Quoting Mrs. Reynolds:" Ew why would he prescribe that instead of the thing allll other drs prescribe for morning sickness? Call ... [snip!] ... days to get the script and I wanted to die. I had to eat every 3 hours or I'd be heaving like crazy That smurf is amazzzzing"
Because doxylamine's safety in pregnancy has been extensively studied and is approved for that usage. Zofran's safety is completely unknown. Its use in pregnant women is off-label.
OP, add B6 to the restavit (doxylamine), it helps make it more effective. It's called diclectin in Canada, and it's the only thing routinely prescribed to pregnant women. How long have you been taking it? Because the drowsiness usually subsides after a bit.
I had MS till 19-20 weeks with my first, started getting better at 14 weeks but still generally sucked. But with this one, I'm 15 weeks and basically fine now, as long as I eat regularly, and when I had it, it was much less severe than the first time. Thank God. I hope you feel better quickly!