Will your vet give you an RX for ondansetron? I used to shop on line for meds like that in bulk or buy at Costco. I thought the meds was super expensive when dealing with my first sick cat. It was because the oncologist was giving me just a few at a time. I started getting the script from my vet and buying 30 or more at a time and saved so much money. My expensive vet had no idea. He didn’t know prices. He never charged for the scripts. I’ve heard some are charging which I find offensive considering how much we pay for services. I also used Good RX to check for the best price.