Alternatives to Zofran that are safe and work?

I have severe anxiety related to vomiting. I literally go into full on meltdown when I'm exposed to vomit and I shake and get so sick emotionally. My doctor prescribed me Zofran to take whenever I get a stomach bug to ease my anxiety. I just came down with one and was able to prevent vomiting with Zofran. Everything came out the other end which is fine with me as long as I don't vomit. I know that the effects of anxiety on a baby can be just as bad as meds. I also know Zofran may not be safe anymore. I need an alternative to Zofran that works for preventing vomiting! Any suggestions?