| e30e69ec-3fc8-e211-8914-001e4f17a1f7 | Obinutuzumabum INN |
| e4b6e675-14ea-e611-80d3-ce1550b700f3 | Ocrelizumabum INN |
| c3f7f212-3cc8-df11-a1f6-0016e6045f8e | Octocogum alfa INN |
| 9406f312-3cc8-df11-a1f6-0016e6045f8e | Octreotidum INN |
| 2708f312-3cc8-df11-a1f6-0016e6045f8e | Ofatumumabum INN |
| fbf2f212-3cc8-df11-a1f6-0016e6045f8e | Olanzapinum INN |
| 63fef941-5e2f-e311-a8db-001e4f17a1f7 | Olaparibum INN |
| c0e99570-deb2-e011-b077-001e4f17a1f7 | Olivae oleum raffinatum |
| 6238cee6-faa3-e111-b50c-001e4f17a1f7 | Olodaterolum INN hýdróklóríð |
| 1e1deb18-3cc8-df11-a1f6-0016e6045f8e | Olopatadinum INN hýdróklóríð |
| 3504f312-3cc8-df11-a1f6-0016e6045f8e | Olsalazinum INN natríum |
| f3f8f212-3cc8-df11-a1f6-0016e6045f8e | Omalizumabum INN |
| 1ffbf212-3cc8-df11-a1f6-0016e6045f8e | Omeprazolum INN |
| 6bf9f212-3cc8-df11-a1f6-0016e6045f8e | Ondansetronum INN hýdróklóríð |
| 7638b15d-7d6b-e611-80d1-ce1550b700f3 | OPIUM |
| e90af312-3cc8-df11-a1f6-0016e6045f8e | Orphenadrinum INN cítrat |
| 9efbf212-3cc8-df11-a1f6-0016e6045f8e | Oseltamivirum INN fosfat |
| 923a8a7c-d3bd-e911-80f3-00155d15472c | Osilodrostatum INN fosfat |
| 76d3179b-2f94-e511-80cf-001e4f17a1f7 | Osimertinibum INN mesylat |
| 96f4f212-3cc8-df11-a1f6-0016e6045f8e | Oxaliplatinum INN |
| 9ff6f212-3cc8-df11-a1f6-0016e6045f8e | Oxazepamum INN |
| 5001f312-3cc8-df11-a1f6-0016e6045f8e | Oxcarbazepinum INN |
| 7ef4f212-3cc8-df11-a1f6-0016e6045f8e | Oxycodonum INN hýdróklóríð |
| 75f6f212-3cc8-df11-a1f6-0016e6045f8e | Oxygenium |
| f2f9f212-3cc8-df11-a1f6-0016e6045f8e | Oxymetazolinum INN hýdróklóríð |
| e402f312-3cc8-df11-a1f6-0016e6045f8e | Oxytetracyclinum INN hýdróklóríð |
| d9f7f212-3cc8-df11-a1f6-0016e6045f8e | Oxytocinum INN |
| d2cabdf2-b5ff-e911-80fa-00155d15460a | Ozanimodum INN |