My doctor prescribed Zofran. I didn't even mention vomiting, just nausea. I know people who've taken it with success.
I stopped feeling nauseous the day after though, so I never picked up the prescription.
I'd be careful with it though, and not take it more than absolutely necessary. My coworker's son got a cleft lip and she was taking it. The FDA lists that as a side effect & warns against using it for pregnancy and only approves it for nausea related to cancer and surgery.
My doctor said they hand it out like water, though, and that cleft lip and palate are caused by a different developmental abnormality so...idk, it depends on who you trust more, doctors or the FDA.
In the meantime, maybe those preggie pops would work, or vitamin b6. My doctor also said B12 would be helpful. Before I was able to see my doctor, I would suck on organic peppermints (with real mint) if I started feeing nauseous at work.