USP Quality Review

No. 79, Issued April 2004

List of Similar Drug Name Pairs:

Introduction A–B C–D E–F G–I K–M N–P Q–T U–Z

*(Brand names are italicized* and new entries are highlighted in red.)**

Naprelan	Naprosyn
Naprosyn	Naprelan
Naprosyn	Niaspan
Narcan	Norcuron
Narcan	Nubain
Nasacort	Azmacort
Nasalcrom	Nasalide
Nasalide	Nasalcrom
Nasarel	Nizoral
Natru-Vent	Atrovent
Navane	Norvasc
Nebcin	Nubain
Nefazodone	Nelfinavir
Nelfinavir	Efavirenz
Nelfinavir	Nefazodone
Nelfinavir	Nevirapine
Neoral	Neurontin
Neoral	Nizoral
Neosar	Cytosar-U
Neo-Synephrine	Epinephrine
Neo-Synephrine	Neo-Synephrine 12-Hour
Neo-Synephrine	Norepinephrine
Neo-Synephrine 12-Hour	Neo-Synephrine
Nephrox	Niferex
Neumega	Neupogen
Neupogen	Epogen
Neupogen	Neumega
Neurontin	Neoral
Neurontin	Noroxin
Neutra-Phos	Neutra-Phos-K
Neutra-Phos-K	K-Phos Neutral
Neutra-Phos-K	Neutra-Phos
Nevirapine	Nelfinavir
Niacin	Niaspan
Niaspan	Naprosyn
Niaspan	Niacin
Nicardipine	Nifedipine	Nimodipine
Nicoderm	Nitroderm
NicoDerm CQ	Nitro-Dur
Nifedipine	Felodipine
Nifedipine	Nicardipine	Nimodipine
Niferex	Nephrox
Nimbex	Bumex
Nimbex	Revex
Nimodipine	Nicardipine	Nifedipine
Nitro-Bid	Nitro-Dur
Nitroderm	Nicoderm
Nitro-Dur	NicoDerm CQ
Nitro-Dur	Nitro-Bid
Nitro-Dur	NitroQuick
Nitroglycerin	Glycerin
NitroQuick	Nitro-Dur
Nizatidine	Tizanidine
Nizoral	Nasarel
Nizoral	Neoral
Nolvadex	Norvasc
Norcuron	Narcan
Norepinephrine	Epinephrine
Norepinephrine	Neo-Synephrine
Norepinephrine	Phenylephrine
Norflex	Keflex
Norflex	Noroxin	Norfloxacin
Norflex	Norvasc
Norfloxacin	Norflex	Noroxin
Noroxin	Neurontin
Noroxin	Norflex	Norfloxacin
Norpramin	Nortriptyline
Nortriptyline	Amitriptyline
Nortriptyline	Desipramine
Nortriptyline	Norpramin
Norvasc	Altace
Norvasc	Navane
Norvasc	Nolvadex
Norvasc	Norflex
Norvasc	Vasotec
Norvir	Retrovir
Novolin 70/30	Novolin N
Novolin L	Novolin N
Novolin N	Humulin N
Novolin N	Novolin 70/30
Novolin N	Novolin L
Novolin N	Novolin R
Novolin R	Humulin R
Novolin R	Novolin N
Nubain	Narcan
Nubain	Nebcin
Nutropin	Nutropin AQ
Nutropin AQ	Nutropin
Ocufen	Ocuflox
Ocufen	Ocupress
Ocuflox	Ocufen
Ocular Lubricants	Acular
Ocumycin	Ocu-Mycin
Ocu-Mycin	Ocumycin
Ocupress	Ocufen
Ofloxacin	Ciprofloxacin
Olanzapine	Oxcarbazepine
Omeprazole	Esomeprazole
Omnipen	Imipenem
Opium Tincture, Deodorized	Opium, Camphorated
Opium, Camphorated	Opium Tincture, Deodorized
Oprelvekin	Aldesleukin
Orgaran	Argatroban
Ortho Tri-Cyclen	Ortho-Cyclen
Ortho Tri-Cyclen	Tri-Levlen
Ortho-Cept	Ortho-Cyclen
Ortho-Cept	Ortho-Est
Ortho-Cyclen	Ortho-Cept
Ortho-Cyclen	Ortho Tri-Cyclen
Ortho-Est	Ortho-Cept
Oruvail	Clinoril
Oruvail	Elavil
Os-Cal	Asacol
Osmitrol	Esmolol
Oxacillin	Ampicillin
Oxazepam	Oxycodone
Oxazepam	Temazepam
Oxcarbazepine	Olanzapine
Oxybutynin	OxyContin
Oxycodone	Oxazepam
Oxycodone	OxyContin
Oxycodone and Acetaminophen	Hydrocodone and Acetaminophen
Oxycodone and Acetaminophen	Oxycodone and Aspirin
Oxycodone and Aspirin	Oxycodone and Acetaminophen
OxyContin	MS Contin
OxyContin	Oxybutynin
OxyContin	Oxycodone
Paclitaxel	Docetaxel
Paclitaxel	Paroxetine
Paclitaxel	Paxil
Pamelor	Panlor SS
Panlor SS	Pamelor
Papaverine	Propafenone
Parafon Forte DSC	Profen Forte
Paraplatin	Platinol
Parlodel	Pindolol
Parlodel	Provera
Paroxetine	Fluoxetine
Paroxetine	Paclitaxel
Paroxetine	Pyridoxine
Paxil	Paclitaxel
Paxil	Plavix
Paxil	Taxol
Pediapred	Pediazole
Pediapred	Risperdal
Pediazole	Pediapred
Pegaspargase	Asparaginase
Penicillamine	Penicillin
Penicillin	Penicillamine
Penicillin G Potassium	Penicillin G Procaine
Penicillin G Procaine	Penicillin G Potassium
Pentobarbital	Phenobarbital
Pepcid	Prevacid
Perative	Periactin
Perceptin	Herceptin
Percocet	Darvocet
Percocet	Percodan
Percocet	Procet
Percodan	Percocet
Percodan	Peri-Colace
Percodan	Vicodin
Periactin	Perative
Peri-Colace	Colace
Peri-Colace	Percodan
Peri-Colace	Procardia
Permax	Bumex
Permethrin	Pyrethrins, Piperonyl Butoxide
Perphenazine	Fluphenazine
Phenazopyridine	Promethazine
Phenobarbital	Pentobarbital
Phenylephrine	Norepinephrine
Phenylephrine	Phenytoin
Phenytoin	Fosphenytoin
Phenytoin	Phenylephrine
Physostigmine	Pyridostigmine
Pilocar	Polocaine
Pilocarpine	Proparacaine
Pindolol	Parlodel
Pindolol	Plendil
Pioglitazone	Rosiglitazone
Pitocin	Pitressin
Pitressin	Pitocin
Platinol	Paraplatin
Plavix	Elavil
Plavix	Paxil
Plendil	Pindolol
Plendil	Pletal
Plendil	Prilosec
Plendil	Prinivil
Pletal	Plendil
Pneumococcal Vaccine, 23-Valent (Polyvalent)	Pneumococcal Vaccine, 7-Valent
Pneumococcal Vaccine, 7-Valent	Pneumococcal Vaccine, 23-Valent (Polyvalent)
Polocaine	Pilocar
Poly-Vi-Sol	Fer-In-Sol
Potassium	Prednisone
Potassium Acetate	Kayexalate
Potassium Acetate	Potassium Chloride
Potassium Bicarbonate and Potassium Chloride	Potassium Bicarbonate and Potassium Citrate
Potassium Bicarbonate and Potassium Citrate	Potassium Bicarbonate and Potassium Chloride
Potassium Chloride	Potassium Acetate
Potassium Chloride	Potassium Citrate
Potassium Chloride	Sodium Chloride
Potassium Citrate	Potassium Chloride
Potassium Phosphates	Sodium Phosphates
Prandin	Avandia
Pravachol	Prevacid
Pravachol	Prinivil
Pravachol	Propranolol
Pravastatin	Atorvastatin
Prazosin	Terazosin
Precare	Precose
Precose	Precare
Prednisolone	Prednisone
Prednisone	Methylprednisolone
Prednisone	Potassium
Prednisone	Prednisolone
Prednisone	Prilosec
Prednisone	Primidone
Prednisone	Pseudoephedrine
Premarin	Prempro
Premarin	Prevacid
Premarin	Primaxin
Premarin	Provera
Premphase	Prempro
Premphase	Vancenase
Prempro	Premarin
Prempro	Premphase
Prepidil	Bepridil
Prevacid	Prinivil
Prevacid	Pepcid
Prevacid	Pravachol
Prevacid	Premarin
Prevacid	Prilosec
Preven	Preveon
Preveon	Preven
Prilosec	Plendil
Prilosec	Prednisone
Prilosec	Prevacid
Prilosec	Prinivil
Prilosec	Prozac
Primacor	Primaxin
Primatene	ProAmantine
Primaxin	Premarin
Primaxin	Primacor
Primidone	Prednisone
Prinivil	Plendil
Prinivil	Pravachol
Prinivil	Prevacid
Prinivil	Prilosec
Prinivil	Prinzide
Prinivil	Proventil
Prinzide	Prinivil
Priscoline	Apresoline
ProAmantine	Primatene
Probenecid	Procanbid
Procainamide	Prochlorperazine
Procan SR	Proscar
Procanbid	Probenecid
Procardia	Peri-Colace
Procardia	Provera
Procardia XL	Cartia XT
Procet	Percocet
Prochlorperazine	Chlorpromazine
Prochlorperazine	Procainamide
Prochlorperazine	Promethazine
Proctocort	Proctocream HC
Proctocream HC	Proctocort
Profen	Profen II	Profen LA
Profen Forte	Parafon Forte DSC
Profen II	Profen	Profen LA
Profen LA	Profen	Profen II
Prograf	Gengraf
Promethazine	Phenazopyridine
Promethazine	Prochlorperazine
Promethazine VC	Promethazine w/ Codeine
Promethazine VC w/ Codeine	Promethazine w/ Codeine
Promethazine w/ Codeine	Promethazine VC w/ Codeine
Promethazine w/ Codeine	Promethazine VC
Propafenone	Papaverine
Proparacaine	Pilocarpine
Propine	Isopto Carpine
Propranolol	Pravachol
Propranolol	Propulsid
Propulsid	Propranolol
Propylthiouracil	Purinethol
Proscar	Procan SR
Proscar	ProSom
Proscar	ProSom	Prozac
Proscar	Provera
ProSom	Proscar
ProSom	Prozac	Proscar
Protonix	Lotronex
Proventil	Bentyl
Proventil	Prinivil
Provera	Covera
Provera	Parlodel
Provera	Premarin
Provera	Procardia
Provera	Proscar
Prozac	Prilosec
Prozac	Proscar	ProSom
Pseudoephedrine	Prednisone
Pulmicort	Pulmozyme
Pulmozyme	Pulmicort
Purinethol	Propylthiouracil
Pyrazinamide	Pyridostigmine
Pyrethrins, Piperonyl Butoxide	Permethrin
Pyridium	Pyridoxine
Pyridostigmine	Physostigmine
Pyridostigmine	Pyrazinamide
Pyridostigmine	Pyridoxine
Pyridoxine	Paroxetine
Pyridoxine	Pyridium
Pyridoxine	Pyridostigmine
Pyridoxine	Pyrimethamine
Pyrimethamine	Pyridoxine

Introduction A–B C–D E–F G–I K–M N–P Q–T U–Z