What kind of insurance doesn't cover Zofran? But go online to Good Rx to get prices and find a place that has good prices using the Good RX card. That price you said is absurd. But check the Good Rx web site for prices at different pharmacies using the Good RX card, and get a Good RX card, check the prices and you should find a good deal.
I saved a fortune when I was on Medicaid and had to pay for certain prescriptions, out of my own pocket. I got my Good Rx card at my doctors office and they should be available at many places. Some small pharmacies don't take the card, but many chains do. The prices vary a lot even then.
The Good Rx website should help you find a card and list the prices of scripts at various pharmacies which take the card. Make sure to slide the list of pharmacies if using a phone, I found 20 for under $5 at Costco and Meijers,
My web browser duckduckgo tells them I am in Indianapolis Indiana. lol
Make sure to slide the list; Kroger wanted: $61.72 while many wanted over$20, but like I said make sure to check, on the website for the best price and slide the list.