The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.
| Level | Code | Title | |
|---|---|---|---|
| 1 | A | Alimentary tract and metabolism | |
| 2 | A03 | Drugs for functional gastrointestinal disorders | |
| 3 | A03A | DRUGS FOR FUNCTIONAL BOWEL DISORDERS | |
| 4 | A03AB | Synthetic anticholinergics, quaternary ammonium compounds | |
| 5 | A03AB53 | Oxyphenonium, combinations |
