Davis's Drug Guide
- obeticholic acid
- obiltoxaximab
- obinutuzumab
- ocrelizumab
- ocriplasmin
- octreotide
- ofatumumab
- ofloxacin
- OLANZapine
- olanzapine/samidorphan
- olaparib
- olaratumab
- oliceridine
- olodaterol
- olodaterol/tiotropium
- olopatadine (nasal)
- olsalazine
- omacetaxine
- omadacycline
- omalizumab
- ombitasvir/paritaprevir/ritonavir
- ombitasvir/paritaprevir/ritonavir/dasabuvir
- omega-3-acid ethyl esters
- omega-3-carboxylic acids
- omeprazole
- onabotulinumtoxinA
- ondansetron
- opicapone
- oprelvekin
- oritavancin
- orlistat
- orphenadrine
- oseltamivir
- osilodrostat
- osimertinib
- ospemifene
- oxacillin
- oxaliplatin
- oxaprozin
- oxazepam
- OXcarbazepine
- oxiconazole
- oxyBUTYnin (oral)
- oxyBUTYnin (transdermal gel)
- oxyBUTYnin (transdermal patch)
- oxyCODONE
- oxyMORphone
- oxytocin
- ozanimod
- ozenoxacin