| Buprenorphine | Brands for Buprenorphine | Pharmacology for Buprenorphine |
| Butorphanol Tartarate | Brands for Butorphanol Tartarate | Pharmacology for Butorphanol Tartarate |
| Dextropropoxyphene | Brands for Dextropropoxyphene | Pharmacology for Dextropropoxyphene |
| Dextropropoxyphene + Ibuprofen | Brands for Dextropropoxyphene + Ibuprofen | Pharmacology for Dextropropoxyphene + Ibuprofen |
| Dextropropoxyphene + Ibuprofen + Paracetamol | Brands for Dextropropoxyphene + Ibuprofen + Paracetamol | Pharmacology for Dextropropoxyphene + Ibuprofen + Paracetamol |
| Dextropropoxyphene + Paracetamol | Brands for Dextropropoxyphene + Paracetamol | Pharmacology for Dextropropoxyphene + Paracetamol |
| Fentanyl Citrate | Brands for Fentanyl Citrate | Pharmacology for Fentanyl Citrate |
| Morphine | Brands for Morphine | Pharmacology for Morphine |
| NALBUPHINE | Brands for NALBUPHINE | Pharmacology for NALBUPHINE |
| Nimesulide + Paracetamol + Dextropropoxyphene | Brands for Nimesulide + Paracetamol + Dextropropoxyphene | Pharmacology for Nimesulide + Paracetamol + Dextropropoxyphene |
| OXYCODONE | Brands for OXYCODONE | Pharmacology for OXYCODONE |
| Pentazocine | Brands for Pentazocine | Pharmacology for Pentazocine |
| Pentazocine + Paracetamol | Brands for Pentazocine + Paracetamol | Pharmacology for Pentazocine + Paracetamol |
| Pethidine | Brands for Pethidine | Pharmacology for Pethidine |
| Remifentanil | Brands for Remifentanil | Pharmacology for Remifentanil |
| Sufentanil Citrate | Brands for Sufentanil Citrate | Pharmacology for Sufentanil Citrate |
| Tramadol | Brands for Tramadol | Pharmacology for Tramadol |
