A week ago, I got a prescription for Carafate 1GM/10ML. It cost $4 with my insurance. This week (after surgery) I was prescribed the same thing and it was over $100.00. Rx said it was not filled too soon. They said 1st time, pharmacy must have put it in as a generic. They said there was no generic for it. I went on-line and found a generic called sucralfate. Please help me understand this!