Since your pain has not responded to acid-reducers like ranitidine or mucosal protectants like sucralfate, the issue may not be simple acidity. Abdominal pain occurring specifically after dinner can sometimes point to gallbladder issues (like gallstones) or delayed digestion. Rather than trying alternative over-the-counter medications, it is best to consult a doctor. They may suggest an abdominal ultrasound to check your gallbladder or prescribe a different class of acid suppressants, like pantoprazole. For temporary relief, try eating smaller, low-fat dinners, avoid spicy foods, and do not lie down immediately after eating. Please seek a medical evaluation for an accurate diagnosis.