Prescription and common over-the-counter medicines sold in the United States, with what their official FDA label says about uses, warnings, side effects and interactions — and our latest news about each one.
Medicines starting with O
- Ocrelizumab Ocrevus
- Octreotide Mycapssa
- Octreotide Acetate BYNFEZIA Pen, Sandostatin, Sandostatin LAR Depot
- Odevixibat Bylvay
- Ofatumumab Kesimpta
- Ofloxacin Ocuflox
- Ofloxacin Ophth Soln
- Ofloxacin Otic
- Olanzapine
- Olanzapine and Fluoxetine
- Olanzapine and Fuoxetine
- Olanzapine and Samidorphan L-Malate Lybalvi
- Olanzapine Pamoate ZYPREXA Relprevv
- Olaparib Lynparza
- Olezarsen Sodium Tryngolza
- Olfoxacin Otic Soln
- Oliceridine Olinvyk
- Olipudase Alfa Xenpozyme
- Olive Oil and Soybean Oil Clinolipid
- Olmesartan Medoxomil Benicar
- Olmesartan Medoxomil, Amlodipine and Hydrochlorothiazide
- Olmesartan Medoxomil, Amlodipine Besylate and Hydrochlorothiazide
- Olmesartan Medoxomil-Hydrochlorothiazide Benicar HCT
- Olmesartan Medoxomil / Amlodipine Besylate / Hydrochlorothiazide Tribenzor
- Olmesartan Medoxomil Amlodipine and Hydrochlorothiazide
- Olmesartan Medoxomil and Amlodipine Besylate and Hydrochlorothiazide
- Olmesartan Medoxomil and Hydrochlorothiazide
- Olodaterol Respimat
- Olopatadine Hydrochloride OTC Eye Allergy Itch Relief, Allergy Relief…
- Olopatadine Hydrochloride and Mometasone Furoate Ryaltris
- Olsalazine Sodium Dipentum
- Olutasidenib Rezlidhia
- Omadacycline Nuzyra
- Omalizumab Xolair, Xolair PFS
- Omaveloxolone Skyclarys
- Omega-3-Acid Ethyl Esters
- Omeprazole OTC
- Omeprazole, Sodium Bicarbonate
- Omeprazole/Sodiium Bicarbonate
- Omeprazole and Sodium Bicarbonate Konvomep
- Omeprazole Magnesium OTC
- Omeprazole Magnesium, Amoxicillin and Rifabutin Talicia
- Omeprazole Sodium Bicarbonate
- Omidenepag Isopropyl Omlonti
- Onabotulinumtoxina Botox, BOTOX Cosmetic
- Onasemnogene Abeparvovec Itvisma, Zolgensma
- Ondansetron
- Ondansetron Hydrochloride
- Ontruzant
- Opicapone Ongentys
- Orforglipron Foundayo
- Origanum Majorana
- Oritavancin Diphosphate Kimyrsa
- Orlistat Xenical
- Orphenadrine Citrate
- Orphenadrine Citrate, Aspirin and Caffeine Norgesic, Norgesic Forte, Orphengesic Forte
- Oseltamavir Phosphate
- Oseltamivir
- Oseltamivir Acid
- Oseltamivir Phosphate Tamiflu
- Osilodrostat Isturisa
- Ospemifene Osphena
- Oteseconazole Vivjoa
- Oxacillin
- Oxacillin Sodium
- Oxaliplatin
- Oxaprozin Coxanto
- Oxazepam
- Oxcarbazepine Trileptal
- Oxiconazole Nitrate
- Oxybutynin Oxytrol
- Oxybutynin Chloride
- Oxycodone Xtampza Er
- Oxycodone/Apap Percocet
- Oxycodone and Acetaminophen Endocet, Nalocet, Prolate
- Oxycodone and Aspirin
- Oxycodone Hydchloride
- Oxycodone Hydrochloride Oxaydo, OxyContin, Roxicodone, RoxyBond
- Oxycodone Hydrochloride and Acetaminophen Prolate
- Oxymetazoline Hydrochloride OTC Major Nasal Decongestant, foster and thrive…
- Oxymorphone Hydrochloride
- Oxyquinoline Sulfate and Sodium Lauryl Sulfate Trimo San
- Oxytocin Pitocin
- Ozanimod Hydrochloride Zeposia, ZEPOSIA 7-Day Starter Pack, ZEPOSIA…
2,846 medicines in the reference. Most common medicines