| Trade name |
Active ingredients |
Pharmaceutical company |
|
Opian | Noscapine | Unidentified Pharmaceutical Company |
| Opianine | Noscapine | Unidentified Pharmaceutical Company |
| Opiate Squill Lintus | Camphorated Opium Tincture; Squill Oxymel | Unidentified Pharmaceutical Company |
| Opinsul | Sulfamethoxypyridazine | Unidentified Pharmaceutical Company |
| Oplossingen | Formaldehyde | Unidentified Pharmaceutical Company |
| Opramidol | Opipramol | Unidentified Pharmaceutical Company |
| Opren | Benoxaprofen | Unidentified Pharmaceutical Company |
| OP-Sulfa | Sulfacetamide | Unidentified Pharmaceutical Company |
| Optarket | Meprobamate | Unidentified Pharmaceutical Company |
| Optef | Hydrocortisone | Unidentified Pharmaceutical Company |