I don't know if they still make it but when I was growing up you could by it at pharmacies. My mom used to give it to us in a little plastic cup over crushed iced to sip on when we were nauseous.
That's the stuff. Perhaps it's because most pharmacies had soda fountains back then that I relate the two. Served over ice, it was a great thing for a young kid to help with a stomach virus. My Mom probably would be thrown if jail for the way she treated me back then!!!