Sorry this is a bit late, but for me Nauzene has helped for any kind of nausea I've had over the past few years.(And that is a lot!)  I'm early into my first pregnancy and my nausea has been absolutely horrible. For about 90% of my nausea it has helped for a little while, but just a little while of no nausea is wonderful. On the box it tells you to chew 2-4 tablets and then if you still nauseated after 15 minutes you can repeat dosage, but I've only chewed 2 at most at one time. It is a temporary fix though..at least for me. It's great for if you can't ever eat anything, and you just want the nausea to go away long enough to eat and keep it down. You can buy Nauzene at Walmart, and some drug stores and I'm sure many other places but it can be hard to find. Also, its no more then $5 here. I did look up Nauzene online to see if it was safe for pregnancy and everything I have found so far says it is, but you can do a little research yourself if you need to.
Again sorry this is so late...hopefully it helps someone.... Good Luck to everyone here, nausea is just horrid.