Medicines Starting with O
Browse medicines by letter
All canonical medicines
- Oat Bran
- Obeticholic acid
- Obinutuzumab
- Ocrelizumab
- Octreotide
- Odevixibat
- Ofatumumab
- Ofloxacin
- Olanzapine
- Olaparib
- Olaratumab
- Olatec: Potential approval 2026–2027 if Phase 3 succeeds.
- Olive Leaf Extract
- Olmesartan
- Olodaterol
- Olopatadine
- Omadacycline
- Omalizumab
- Omega-3
- Ondansetron
- Opicapone
- Opium tincture
- Oregano Oil
- Orfenadrine
- Oritavancin
- Orlistat
- Ormeloxifene
- Orthosilicic Acid
- Oseltamivir
- Osimertinib / Osimertinib mesylate
- Ospemifene
- Otilonium bromide
- Oxacillin
- Oxaliplatin
- Oxandrolone
- Oxaprozin
- Oxazepam
- Oxcarbazepine
- Oxeladin
- Oxtriphylline
- Oxybutynin
- Oxycodone
- Oxycodone/APAP
- Oxymetazoline
- Oxytetracycline
- Oxytocin
- Ozanimod
- Ozenoxacin