|A - Alimentary Tract and Metabolism|
|A02 - Drugs for Acid Related Disorders|
|A02B - Drugs for Peptic Ulcer and Gastro-Oesophageal Reflux Disease (Gord)|
|A02BC - Proton Pump Inhibitors|
Proton pump inhibitors in combination with domperidone are classified here in 50-levels.
Potassium-competitive acid blockers e.g. vonoprazan are classified in this group.
The DDDs are based on treatment of gastro-oesophageal reflux disease.