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Drugs: O
Learn about your prescription drugs and over-the-counter medicines. Includes side effects, dosage, special precautions, and more.
For FDA approved labels included in drug packages, see DailyMed.
- Orasone® see Prednisone
- Oratuss® (as a combination product containing Carbetapentane, Guaifenesin, Phenylephrine) see Phenylephrine
- Oravig® see Miconazole Buccal
- Orbactiv® see Oritavancin Injection
- Orbivan® (as a combination product containing Acetaminophen, Butalbital, Caffeine) see Acetaminophen, Butalbital, and Caffeine
- Orencia® see Abatacept Injection
- Orenitram® see Treprostinil
- Oretic® see Hydrochlorothiazide
- ORGAN-I NR® see Guaifenesin
- Orgatrax® see Hydroxyzine
- Orgovyx® see Relugolix
- Oriahnn® see Elagolix, Estradiol, and Norethindrone
- Orilissa® see Elagolix
- Orinase® see Tolbutamide
- Oritavancin Injection
- Orkambi® see Lumacaftor and Ivacaftor
- Orlistat
- Orphenadrine
- Orphengesic® (as a combination product containing Aspirin, Caffeine, Orphenadrine) see Orphenadrine
- Orphengesic® (as a combination product containing Aspirin, Caffeine, Orphenadrine) see Aspirin
- Orserdu® see Elacestrant
- Ortho Guard® see Fluoride
- Ortho Tri-Cyclen® (as a combination product containing Ethinyl Estradiol, Norgestimate) see Estrogen and Progestin (Oral Contraceptives)
- Ortho Tri-Cyclen® Lo (as a combination product containing Ethinyl Estradiol, Norgestimate) see Estrogen and Progestin (Oral Contraceptives)
- Ortho-Cept® (as a combination product containing Desogestrel, Ethinyl Estradiol) see Estrogen and Progestin (Oral Contraceptives)
- Ortho-Cyclen® (as a combination product containing Ethinyl Estradiol, Norgestimate) see Estrogen and Progestin (Oral Contraceptives)
- Ortho-est® (estropipate) see Estrogen
- Ortho-Novum® 1/35 (as a combination product containing Ethinyl Estradiol, Norethindrone) see Estrogen and Progestin (Oral Contraceptives)
- Ortho-Novum® 1/50 [DSC] (as a combination product containing Mestranol, Norethindrone) see Estrogen and Progestin (Oral Contraceptives)
- Orudis® see Ketoprofen
- Orudis® KT see Ketoprofen
- Oruvail® see Ketoprofen
- Orvaten® see Midodrine
- Os-Cal 500® see Calcium Carbonate
- Oscimin® see Hyoscyamine
- Oscion® see Benzoyl Peroxide Topical
- Oseltamivir
- Oseni® (as a combination product containing Alogliptin, Pioglitazone) see Alogliptin
- Oseni® (as a combination product containing Alogliptin, Pioglitazone) see Pioglitazone
- Osimertinib
- Osmolex ER® see Amantadine
- OsmoPrep,® see Sodium Phosphate
- Ospemifene
- Osphena® see Ospemifene
- Otezla® see Apremilast
- Otiprio® see Ciprofloxacin Otic
- Otrexup® see Methotrexate Injection
- Ovcon® (as a combination product containing Ethinyl Estradiol, Norethindrone) see Estrogen and Progestin (Oral Contraceptives)
- Ovide® see Malathion Topical
- Ovrette® see Progestin-Only (norethindrone) Oral Contraceptives
- Oxacillin Injection
- Oxaliplatin Injection
- Oxandrin® see Oxandrolone
- Oxandrolone
- Oxaprozin
- Oxaydo® see Oxycodone
- Oxazepam
- Oxbryta® see Voxelotor
- Oxcarbazepine
- Oxecta® see Oxycodone
- Oxervate® see Cenegermin-bkbj Ophthalmic
- Oxiconazole
- Oxilapine see Loxapine
- Oxistat® see Oxiconazole
- Oxtellar XR® see Oxcarbazepine
- Oxy 10® see Benzoyl Peroxide Topical
- Oxy® Clinical Advanced Face Wash see Salicylic Acid Topical
- Oxy® Maximum Cleansing Pads see Salicylic Acid Topical
- Oxybate Sodium see Sodium Oxybate
- Oxybutynin
- Oxybutynin Topical
- Oxybutynin Transdermal Patch
- Oxycet® (as a combination product containing Acetaminophen, Oxycodone) see Oxycodone
- Oxycodone
- Oxycontin® see Oxycodone
- Oxyfast® see Oxycodone
- OxyIR® see Oxycodone
- Oxymetazoline Nasal Spray
- Oxymetazoline Topical
- Oxymorphone
- Oxytocin Injection
- Oxytrol® see Oxybutynin Transdermal Patch
- Ozanimod
- Ozempic® see Semaglutide Injection
- Ozenoxacin
- Ozobax® see Baclofen
* This branded product is no longer on the market. Generic alternatives may be available.
** These products are not currently approved by the FDA for safety, effectiveness, and quality. Federal law generally requires that prescription drugs in the U.S. be shown to be both safe and effective prior to marketing. Please see the FDA website for more information on unapproved drugs (http://www.fda.gov/AboutFDA/Transparency/Basics/ucm213030.htm ) and the approval process (http://www.fda.gov/Drugs/ResourcesForYou/Consumers/ucm054420.htm ).