Thanks Dr. Doug. I will call my vet Monday morning. Meanwhile, Andy is eating and acting normally. I did read up on Pepcid AC and discovered it is a specialized antihistamine, which reduces or stops the acid formation in the digestive system. Andy was on Benadryl for months before his surgery because the tumors on him were suspected of being mast cell tumors, which release histamine. He had no vomiting occurrences during that time. He's been off the Benadryl for several weeks now, and that's when the vomiting episodes began. Hopefully I'll be able to get something that will eliminate this, and of course I'll keep monitoring his liver values. It's like walking a tightrope when your pet has liver or pancreatic issues.
Rita