- OC 8 Adult Acne
- OC Eight
- Ocaliva
- Occlusal-HP
- Ocean
- Ocean Blue Nutritionals Vitamin B Plus Omega-3 1450
- Ocella
- Ocrelizumab
- Ocrevus
- Octenidine, Combinations
- Octinoxate
- Octocaine with Epinephrine
- Octopamine
- Octreotide
- Ocu-Caine
- Ocu-Carpine
- Ocu-Chlor
- Ocu-Cort
- Ocu-Dex
- Ocu-Mycin
- Ocu-Pred
- Ocu-Pred Forte
- Ocu-Pred-A
- Ocu-Spore-B
- Ocu-Spore-G
- Ocu-Tracin
- Ocu-Trol
- Ocu-Tropic
- Ocu-Tropine
- Ocu-Zoline
- Ocuclear
- Ocudox
- Ocufen
- Ocuflox
- Ocuhist
- Ocumycin
- Ocupress
- Ocusan
- Ocusoft
- Ocusulf-10
- Ocutricin
- Ocutricin HC
- Ocuvite
- Ocuvite Lutein