Drugs: O
- Oak Mixture 1 company
- Oat 3 companies
- Obecabtagene Autoleucel 1 company
- Obeticholic Acid 1 company
- Obiltoxaximab 1 company
- Obinutuzumab 1 company
- Ocrelizumab 1 company
- Octinoxate 1 company
- Octinoxate and Oxybenzone 1 company
- Octinoxate and Titanium Dioxide 1 company
- Octreotide 17 companies
- Odevixibat 1 company
- Odocoileus Virginianus Hair 1 company
- Ofatumumab 1 company
- Ofloxacin 21 companies
- Okra 1 company
- Olanzapine 30 companies
- Olanzapine and Samidorphan 1 company
- Olaparib 1 company
- Olea Europaea Pollen 3 companies
- Olezarsen 1 company
- Oliceridine 1 company
- Olipudase Alfa 1 company
- Olive Oil and Soybean Oil 1 company
- Olmesartan 24 companies
- Olodaterol 1 company
- Olodaterol and Tiotropium 1 company
- Olopatadine 8 companies
- Olsalazine 1 company
- Olutasidenib 1 company
- Omadacycline 1 company
- Omalizumab 2 companies
- Omaveloxolone 2 companies
- Omega-3 Fatty Acids 14 companies
- Omega-3 Fatty Acids and Vitamin D 3 companies
- Omega-3 Fatty Acids, Icosapent, Doconexent, Thiamine Mononitrate, Riboflavin, Py 1 company
- Omega-3 Fatty Acids, Niacin, .alpha.-Tocopherol, Vitamin D, Lauric Acid, Vitamin 1 company
- Omega-3 Rx Complete 1 company
- Omega-3-Acid Ethyl Esters 1 company
- Omeprazole 19 companies
- Omeprazole and Sodium Cation 2 companies
- Omidenepag 2 companies
- Omidubicel and Omidubicel Non-Cultured Fraction 1 company
- Onasemnogene Abeparvovec 1 company
- Ondansetron 40 companies
- Ondansetron and Sumatriptan 1 company
- Onion 3 companies
- Opicapone 1 company
- Orange 3 companies
- Oregano 2 companies
- Orforglipron 1 company
- Origanum Majorana 1 company
- Oritavancin 1 company
- Orlistat 1 company
- Orphenadrine 6 companies
- Oryctolagus Cuniculus Hair 1 company
- Oryctolagus Cuniculus Hair and Oryctolagus Cuniculus Skin 1 company
- Oryctolagus Cuniculus Skin 1 company
- Oseltamivir 1 company
- Oseltamivir Acid 28 companies