Is nauzene safe during pregnancy?

Yes. It's basically just sugar and aspartame (nutrasweet). As long as you don't have phenyketonuria, you can take it. I am not a fan of aspartame anytime, and I think it's especially important to avoid as many artificial chemicals during pregnancy as possible, so I wouldn't recommend nauzene. There are other nausea treatments that i'd use first (try ginger tea).