There are several pharmaceutical products available for the treatment of gastroesophageal reflux disease (GERD) or other gastrointestinal disorders, including:

1. Antacids such as Tums, Rolaids, or Maalox
2. H2 receptor blockers such as famotidine (Pepcid) or cimetidine (Tagamet)
3. Proton pump inhibitors (PPIs) such as omeprazole (Prilosec), lansoprazole (Prevacid), or esomeprazole (Nexium)
4. Prokinetic agents such as metoclopramide (Reglan)
5. Antibiotics for cases of infection, such as H. pylori

It's important to consult with a doctor to determine the best treatment plan and to discuss potential risks and benefits of these medications.