- Otede Brand
- Oteracil potassium Generic
- Otilon Brand
- Otilonium bromide Generic
- Otolin Brand
- Otopain Brand
- Otopraf Brand
- Otozambon Brand
- Otrivin Brand
- Otsu-D5 Brand
- Otsulip Brand
- Otsu-Manitol Brand
- Otsu-NS Brand
- Otsutran L Brand
- Ottogenta Cream Brand
- Ottogenta Injection Brand
- Ottopan Brand
- Ottopan Infusion Brand
- Ottozol Brand