Ondansetron has helped me greatly with nausea. I have nausea that is off the charts so much so that I ended up in the emergency dept of the hospital twice.

Thankfully this nausea only happens once or twice a month. Turns out that the cause of the nausea was hormonal changes. The instructions for it were to take when needed. It did a great job stopping being ill.

When you get better from what is making you ill you wont need it any more.