WHO level | Post-operative analgesics | Effective | Percentage |
| Dexamethasone | 30 | 88.2 |
Tier I | Paracetamol | 34 | 100 |
| Ketoprofen | 15 | 44.1 |
Tier II | Tramadol | 13 | 38.2 |
Paracetamol + Codeine | 6 | 17.6 |