Drugs starting with O
213 drugs starting with O appear on at least one 2026 stand-alone Medicare Part D formulary. Choose one for its tier, cost and restrictions in every plan.
- OCTAGAM IMMUNE GLOBULIN (HUMAN) 100 mg/mL SolutionImmune Globulin85 plans
- OCTAGAM IMMUNE GLOBULIN (HUMAN) 50 mg/mL SolutionImmune Globulin77 plans
- OCTREOTIDE 100 ug/mL Injection, SolutionOctreotide Acetate367 plans
- OCTREOTIDE 1000 ug/mL Injection, SolutionOctreotide Acetate367 plans
- OCTREOTIDE 500 ug/mL Injection, SolutionOctreotide Acetate367 plans
- OCTREOTIDE ACETATE 200 ug/mL Injection, Solution367 plans
- OCTREOTIDE ACETATE 50 ug/mL Injection, Solution367 plans
- OCUFLOX 3 mg/mL Solution/ DropsOfloxacinOn no Part D formulary
- ODACTRA 6/6 [arb'U] TabletDermatophagoides Pteronyssinus And Dermatophagoides Farinae3 plans
- ODEFSEY 200/25/25 mg TabletEmtricitabine, Rilpivirine Hydrochloride, And Tenofovir Alafenamide367 plans
- ODOMZO 200 mg CapsuleSonidegib367 plans
- OFEV 100 mg CapsuleNintedanib367 plans
- OFEV 150 mg CapsuleNintedanib367 plans
- OFLOXACIN 3 mg/mL Solution367 plans
- OFLOXACIN 3 mg/mL SolutionOfloxacin Otic367 plans
- OGSIVEO 100 mg Tablet, Film CoatedNirogacestat367 plans
- OGSIVEO 150 mg Tablet, Film CoatedNirogacestat367 plans
- OHTUVAYRE 3 mg/2.5mL SuspensionEnsifentrineOn no Part D formulary
- OJEMDA 100 mg Tablet, Film CoatedTovorafenib367 plans
- OJEMDA 100 mg Tablet, Film CoatedTovorafenib367 plans
- OJEMDA 100 mg Tablet, Film CoatedTovorafenib367 plans
- OJEMDA KitTovorafenib367 plans
- OJJAARA 100 mg TabletMomelotinib367 plans
- OJJAARA 150 mg TabletMomelotinib367 plans
- OJJAARA 200 mg TabletMomelotinib367 plans
- OLANZAPINE 10 mg Tablet, Film Coated367 plans
- OLANZAPINE 10 mg Tablet, Orally Disintegrating367 plans
- OLANZAPINE 10 mg/2mL Injection, Powder, Lyophilized, For Solution367 plans
- OLANZAPINE 15 mg Tablet, Film Coated367 plans
- OLANZAPINE 15 mg Tablet, Orally Disintegrating367 plans
- OLANZAPINE 2.5 mg Tablet, Film Coated367 plans
- OLANZAPINE 20 mg Tablet, Film Coated367 plans
- OLANZAPINE 20 mg Tablet, Orally Disintegrating367 plans
- OLANZAPINE 5 mg Tablet, Film Coated367 plans
- OLANZAPINE 5 mg Tablet, Orally Disintegrating367 plans
- OLANZAPINE 7.5 mg Tablet, Film Coated367 plans
- OLANZAPINE AND FLUOXETINE 12/25 mg CapsuleOlanzapine And Fuoxetine2 plans
- OLANZAPINE AND FLUOXETINE 12/50 mg CapsuleOlanzapine And Fuoxetine2 plans
- OLANZAPINE AND FLUOXETINE 3/25 mg CapsuleOlanzapine And Fuoxetine2 plans
- OLANZAPINE AND FLUOXETINE 6/25 mg CapsuleOlanzapine And Fuoxetine2 plans
- OLANZAPINE AND FLUOXETINE 6/50 mg CapsuleOlanzapine And Fuoxetine2 plans
- OLMESARTAN MEDOXOMIL / AMLODIPINE BESYLATE / HYDROCHLOROTHIAZIDE 40/10/12.5 mg Tablet, Film Coated157 plans
- OLMESARTAN MEDOXOMIL / AMLODIPINE BESYLATE / HYDROCHLOROTHIAZIDE 40/10/25 mg Tablet, Film Coated157 plans
- OLMESARTAN MEDOXOMIL 20 mg Tablet, Film Coated367 plans
- OLMESARTAN MEDOXOMIL 40 mg Tablet, Film Coated367 plans
- OLMESARTAN MEDOXOMIL 5 mg Tablet, Film Coated367 plans
- OLMESARTAN MEDOXOMIL AND HYDROCHLOROTHIAZIDE 20/12.5 mg Tablet333 plans
- OLMESARTAN MEDOXOMIL AND HYDROCHLOROTHIAZIDE 40/12.5 mg Tablet333 plans
- OLMESARTAN MEDOXOMIL AND HYDROCHLOROTHIAZIDE 40/25 mg Tablet333 plans
- OLMESARTAN MEDOXOMIL, AMLODIPINE AND HYDROCHLOROTHIAZIDE 20/5/12.5 mg Tablet, Film Coated157 plans
- OLMESARTAN MEDOXOMIL, AMLODIPINE AND HYDROCHLOROTHIAZIDE 40/5/12.5 mg Tablet, Film Coated157 plans
- OLMESARTAN MEDOXOMIL, AMLODIPINE AND HYDROCHLOROTHIAZIDE 40/5/25 mg Tablet, Film Coated157 plans
- OLOPATADINE HYDROCHLORIDE 665 ug Spray48 plans
- OLPRUVA KitSodium PhenylbutyrateOn no Part D formulary
- OLPRUVA KitSodium PhenylbutyrateOn no Part D formulary
- OLPRUVA KitSodium PhenylbutyrateOn no Part D formulary
- OLPRUVA KitSodium PhenylbutyrateOn no Part D formulary
- OLPRUVA KitSodium PhenylbutyrateOn no Part D formulary
- OLPRUVA KitSodium PhenylbutyrateOn no Part D formulary
- OLUMIANT 1 mg Tablet, Film CoatedBaricitinibOn no Part D formulary
- OLUMIANT 2 mg Tablet, Film CoatedBaricitinibOn no Part D formulary
- OLUMIANT 4 mg Tablet, Film CoatedBaricitinibOn no Part D formulary
- OMEGA-3-ACID ETHYL ESTERS 900 mg Capsule266 plans
- OMEPRAZOLE 10 mg Capsule, Delayed Release367 plans
- OMEPRAZOLE 20 mg Capsule, Delayed Release367 plans
- OMEPRAZOLE 40 mg Capsule, Delayed Release367 plans
- OMEPRAZOLE AND SODIUM BICARBONATE 20/1100 mg CapsuleOn no Part D formulary
- OMEPRAZOLE AND SODIUM BICARBONATE 20/1680 mg For SuspensionOn no Part D formulary
- OMEPRAZOLE AND SODIUM BICARBONATE 40/1100 mg CapsuleOn no Part D formulary
- OMEPRAZOLE AND SODIUM BICARBONATE 40/1680 mg For SuspensionOn no Part D formulary
- OMNARIS 50 ug SprayCiclesonideOn no Part D formulary
- OMNITROPE 10 mg/1.5mL Injection, SolutionSomatropin194 plans
- OMNITROPE 5 mg/1.5mL Injection, SolutionSomatropin194 plans
- OMNITROPE KitSomatropin194 plans
- OMVOH 100 mg/mL Injection, SolutionMirikizumab-MrkzOn no Part D formulary
- OMVOH 100 mg/mL Injection, SolutionMirikizumab-MrkzOn no Part D formulary
- OMVOH 100 mg/mL Injection, SolutionMirikizumab-MrkzOn no Part D formulary
- OMVOH 100 mg/mL Injection, SolutionMirikizumab-MrkzOn no Part D formulary
- OMVOH KitMirikizumab-MrkzOn no Part D formulary
- OMVOH KitMirikizumab-MrkzOn no Part D formulary
- ONAPGO 4.9 mg/mL Injection, SolutionApomorphine HydrochlorideOn no Part D formulary
- ONDANSETRON 4 mg Tablet, Orally Disintegrating367 plans
- ONDANSETRON 8 mg Tablet, Orally Disintegrating367 plans
- ONDANSETRON HYDROCHLORIDE 4 mg Tablet, Film Coated367 plans
- ONDANSETRON HYDROCHLORIDE 4 mg/5mL Solution287 plans
- ONDANSETRON HYDROCHLORIDE 8 mg Tablet, Film Coated367 plans
- ONEXTON 10/37.5 mg/g GelClindamycin Phosphate And Benzoyl PeroxideOn no Part D formulary
- ONFI 10 mg TabletClobazamOn no Part D formulary
- ONFI 2.5 mg/mL SuspensionClobazamOn no Part D formulary
- ONFI 20 mg TabletClobazamOn no Part D formulary
- ONGENTYS 25 mg CapsuleOpicapone62 plans
- ONGENTYS 50 mg CapsuleOpicapone62 plans
- ONUREG 200 mg Tablet, Film CoatedAzacitidine367 plans
- ONUREG 300 mg Tablet, Film CoatedAzacitidine367 plans
- ONYDA XR .1 mg/mL Suspension, Extended ReleaseClonidine HydrochlorideOn no Part D formulary
- OPIPZA 10 mg Film, SolubleAripiprazole367 plans
- OPIPZA 2 mg Film, SolubleAripiprazole367 plans
- OPIPZA 5 mg Film, SolubleAripiprazole367 plans
- OPSUMIT 10 mg Tablet, Film CoatedMacitentan115 plans
- OPSYNVI 10/20 mg Tablet, Film CoatedMacitentan And Tadalafil2 plans
- OPSYNVI 10/40 mg Tablet, Film CoatedMacitentan And Tadalafil2 plans
- OPVEE 2.7 mg/100uL SprayNalmefene Hydrochloride200 plans
- OPZELURA 15 mg/g CreamRuxolitinibOn no Part D formulary
- ORACEA 40 mg CapsuleDoxycyclineOn no Part D formulary
- ORAPRED ODT 10 mg Tablet, Orally DisintegratingPrednisolone Sodium PhosphateOn no Part D formulary
- ORAPRED ODT 15 mg Tablet, Orally DisintegratingPrednisolone Sodium PhosphateOn no Part D formulary
- ORAPRED ODT 30 mg Tablet, Orally DisintegratingPrednisolone Sodium PhosphateOn no Part D formulary
- ORENCIA 125 mg/mL Injection, SolutionAbatacept5 plans
- ORENCIA 125 mg/mL Injection, SolutionAbatacept5 plans
- ORENCIA 50 mg/.4mL Injection, SolutionAbatacept5 plans
- ORENCIA 87.5 mg/.7mL Injection, SolutionAbatacept5 plans
- ORENITRAM .125 mg Tablet, Extended ReleaseTreprostinil156 plans
- ORENITRAM .25 mg Tablet, Extended ReleaseTreprostinil156 plans
- ORENITRAM 1 mg Tablet, Extended ReleaseTreprostinil156 plans
- ORENITRAM 2.5 mg Tablet, Extended ReleaseTreprostinil156 plans
- ORENITRAM 5 mg Tablet, Extended ReleaseTreprostinil156 plans
- ORENITRAM KitTreprostinil154 plans
- ORENITRAM KitTreprostinil154 plans
- ORENITRAM KitTreprostinil154 plans
- ORFADIN 10 mg CapsuleNitisinoneOn no Part D formulary
- ORFADIN 2 mg CapsuleNitisinoneOn no Part D formulary
- ORFADIN 20 mg CapsuleNitisinoneOn no Part D formulary
- ORFADIN 4 mg/mL SuspensionNitisinone10 plans
- ORFADIN 5 mg CapsuleNitisinoneOn no Part D formulary
- ORGOVYX 120 mg Tablet, Film CoatedRelugolix367 plans
- ORIAHNN KitElagolix And Estradiol And NorethisteroneOn no Part D formulary
- ORILISSA 150 mg Tablet, Film CoatedElagolixOn no Part D formulary
- ORILISSA 200 mg Tablet, Film CoatedElagolixOn no Part D formulary
- ORKAMBI 100/125 mg GranuleLumacaftor And Ivacaftor194 plans
- ORKAMBI 100/125 mg Tablet, Film CoatedLumacaftor And Ivacaftor195 plans
- ORKAMBI 150/188 mg GranuleLumacaftor And Ivacaftor194 plans
- ORKAMBI 200/125 mg Tablet, Film CoatedLumacaftor And Ivacaftor195 plans
- ORKAMBI 75/94 mg GranuleLumacaftor And Ivacaftor194 plans
- ORLADEYO 110 mg CapsuleBerotralstat HydrochlorideOn no Part D formulary
- ORLADEYO 150 mg CapsuleBerotralstat HydrochlorideOn no Part D formulary
- ORLYNVAH 500/500 mg Tablet, Film CoatedSulopenem Etzadroxil And Probenecid2 plans
- ORMALVI 50 mg TabletDichlorphenamideOn no Part D formulary
- ORPHENADRINE CITRATE 100 mg Tablet, Extended Release1 plan
- ORQUIDEA .35 mg TabletNorethindrone365 plans
- ORSERDU 345 mg Tablet, Film CoatedElacestrant367 plans
- ORSERDU 86 mg Tablet, Film CoatedElacestrant367 plans
- OSELTAMIVIR PHOSPHATE 30 mg Capsule367 plans
- OSELTAMIVIR PHOSPHATE 45 mg Capsule367 plans
- OSELTAMIVIR PHOSPHATE 6 mg/mL Powder, For Suspension367 plans
- OSELTAMIVIR PHOSPHATE 75 mg CapsuleOseltamivir367 plans
- OSENVELT 120 mg/1.7mL InjectionDenosumab-Bmwo164 plans
- OSPHENA 60 mg Tablet, Film CoatedOspemifene76 plans
- OSPOMYV 60 mg/mL Injection, SolutionDenosumab37 plans
- OTEZLA 20 mg Tablet, Film CoatedApremilast228 plans
- OTEZLA 30 mg Tablet, Film CoatedApremilast228 plans
- OTEZLA 75 mg Tablet, Film CoatedApremilast227 plans
- OTEZLA KitApremilast228 plans
- OTEZLA KitApremilast228 plans
- OTEZLA KitApremilast227 plans
- OTULFI 45 mg/.5mL Injection, SolutionUstekinumab-Aauz102 plans
- OTULFI 45 mg/.5mL Injection, SolutionUstekinumab-Aauz102 plans
- OTULFI 90 mg/mL Injection, SolutionUstekinumab-Aauz102 plans
- OVIDE .0005 g/mL LotionMalathionOn no Part D formulary
- OXACILLIN 1 g/20mL Injection, Powder, For Solution204 plans
- OXACILLIN 10 g/100mL Injection, Powder, For SolutionOxacillin Sodium170 plans
- OXACILLIN 2 g/20mL Injection, Powder, For Solution204 plans
- OXACILLIN 2 g/50mL Injection, Solution39 plans
- OXAPROZIN 600 mg Tablet, Film Coated135 plans
- OXAZEPAM 10 mg Capsule, Gelatin Coated37 plans
- OXAZEPAM 15 mg Capsule, Gelatin Coated37 plans
- OXAZEPAM 30 mg Capsule, Gelatin Coated37 plans
- OXCARBAZEPINE 150 mg Tablet, Extended Release2 plans
- OXCARBAZEPINE 150 mg Tablet, Film Coated367 plans
- OXCARBAZEPINE 300 mg Tablet, Extended Release2 plans
- OXCARBAZEPINE 300 mg Tablet, Film Coated367 plans
- OXCARBAZEPINE 300 mg/5mL Suspension367 plans
- OXCARBAZEPINE 600 mg Tablet, Extended Release2 plans
- OXCARBAZEPINE 600 mg Tablet, Film Coated367 plans
- OXERVATE 20 ug/mL Solution/ DropsCenegermin-Bkbj128 plans
- OXICONAZOLE NITRATE 10 mg/g Cream39 plans
- OXISTAT 10 mg/mL LotionOxiconazole Nitrate41 plans
- OXYBUTYNIN 10 mg Tablet, Film Coated, Extended Release367 plans
- OXYBUTYNIN 5 mg Tablet, Film Coated, Extended Release367 plans
- OXYBUTYNIN CHLORIDE 15 mg Tablet, Extended Release367 plans
- OXYBUTYNIN CHLORIDE 5 mg Tablet367 plans
- OXYBUTYNIN CHLORIDE 5 mg/5mL Syrup365 plans
- OXYCODONE AND ACETAMINOPHEN 10/325 mg TabletOxycodone Hydrochloride And Acetaminophen367 plans
- OXYCODONE AND ACETAMINOPHEN 2.5/325 mg Tablet367 plans
- OXYCODONE AND ACETAMINOPHEN 5/325 mg TabletOxycodone Hydrochloride And Acetaminophen367 plans
- OXYCODONE AND ACETAMINOPHEN 7.5/325 mg TabletOxycodone Hydrochloride And Acetaminophen367 plans
- OXYCODONE HYDROCHLORIDE 10 mg Tablet367 plans
- OXYCODONE HYDROCHLORIDE 100 mg/5mL Solution273 plans
- OXYCODONE HYDROCHLORIDE 15 mg Tablet367 plans
- OXYCODONE HYDROCHLORIDE 20 mg Tablet367 plans
- OXYCODONE HYDROCHLORIDE 30 mg Tablet367 plans
- OXYCODONE HYDROCHLORIDE 5 mg Capsule171 plans
- OXYCODONE HYDROCHLORIDE 5 mg Tablet367 plans
- OXYCODONE HYDROCHLORIDE 5 mg/5mL Solution312 plans
- OXYCONTIN 10 mg Tablet, Film Coated, Extended ReleaseOxycodone HydrochlorideOn no Part D formulary
- OXYCONTIN 15 mg Tablet, Film Coated, Extended ReleaseOxycodone HydrochlorideOn no Part D formulary
- OXYCONTIN 20 mg Tablet, Film Coated, Extended ReleaseOxycodone HydrochlorideOn no Part D formulary
- OXYCONTIN 30 mg Tablet, Film Coated, Extended ReleaseOxycodone HydrochlorideOn no Part D formulary
- OXYCONTIN 40 mg Tablet, Film Coated, Extended ReleaseOxycodone HydrochlorideOn no Part D formulary
- OXYCONTIN 60 mg Tablet, Film Coated, Extended ReleaseOxycodone HydrochlorideOn no Part D formulary
- OXYCONTIN 80 mg Tablet, Film Coated, Extended ReleaseOxycodone HydrochlorideOn no Part D formulary
- OXYMORPHONE HYDROCHLORIDE 10 mg TabletOn no Part D formulary
- OXYMORPHONE HYDROCHLORIDE 10 mg Tablet, Film Coated, Extended Release60 plans
- OXYMORPHONE HYDROCHLORIDE 15 mg Tablet, Film Coated, Extended Release60 plans
- OXYMORPHONE HYDROCHLORIDE 20 mg Tablet, Film Coated, Extended Release60 plans
- OXYMORPHONE HYDROCHLORIDE 30 mg Tablet, Film Coated, Extended Release60 plans
- OXYMORPHONE HYDROCHLORIDE 40 mg Tablet, Film Coated, Extended Release60 plans
- OXYMORPHONE HYDROCHLORIDE 5 mg TabletOn no Part D formulary
- OXYMORPHONE HYDROCHLORIDE 5 mg Tablet, Film Coated, Extended Release60 plans
- OXYMORPHONE HYDROCHLORIDE 7.5 mg Tablet, Film Coated, Extended Release60 plans
- OXYTROL 3.9 mg/d PatchOxybutynin2 plans
- OZEMPIC .68 mg/mL Injection, SolutionSemaglutide367 plans
- OZEMPIC 1.34 mg/mL Injection, SolutionSemaglutide367 plans
- OZEMPIC 2.68 mg/mL Injection, SolutionSemaglutide367 plans
Plan counts are stand-alone Part D plans nationwide. To see one plan’s whole list instead, browse a plan formulary.