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.)
Quibron Quibron-T Quibron-T/SR
Quibron-T Quibron Quibron-T/SR
Quibron-T/SR Quibron Quibron-T
Quinacrine Quinidine
Quinapril Lisinopril
Quinidine Quinacrine
Quinidine Quinine
Quinine Quinidine
Raloxifene Ropinirole
Ramipril Rifampin
Ranitidine Amantadine Rimantadine
Ranitidine Felodipine
Ratgam
(Synonym for Thymoglobulin)		 Atgam
ReFresh
(breath drops)		 Refresh
(lubricant eye drops)
Refresh
(lubricant eye drops)		 ReFresh
(breath drops)
Reglan Megace
Reglan Renagel
Reglan Robitussin
Reglan Zofran
Regranex Granulex
Relafen Rezulin
Remegel Renagel
Remeron Restoril
Remeron Zemuron
Reminyl Amaryl
Reminyl Robinul
Renagel Reglan
Renagel Remegel
Reno-60 Renografin-60
Renografin-60 Reno-60
Reopro Rheomacrodex
Repaglinide Rosiglitazone
Requip Risperdal
Reserpine Risperdal Risperidone
Restoril Remeron
Restoril Risperdal
Restoril Vistaril
Retavase Activase
Retrovir Norvir
Retrovir Ritonavir
Revex Nimbex
Revex ReVia
ReVia Revex
Rezulin Relafen
Rheomacrodex Reopro
Ridaura Cardura
Rifabutin Rifampin
Rifadin Rifater
Rifampin Ramipril
Rifampin Rifabutin
Rifater Rifadin
Rimantadine Amantadine Ranitidine
Risedronate Risperidone
Risperdal Estradiol
Risperdal Lisinopril
Risperdal Pediapred
Risperdal Requip
Risperdal Reserpine Risperidone
Risperdal Restoril
Risperidone Reserpine Risperdal
Risperidone Risedronate
Risperidone Ropinirole
Ritalin Ritalin SR
Ritalin SR Ritalin
Ritonavir Retrovir
Rituximab Infliximab
Robinul Reminyl
Robitussin Reglan
Robitussin Robitussin DM
Robitussin AC Robitussin DAC
Robitussin AC Robitussin DM
Robitussin DAC Robitussin AC
Robitussin DM Robitussin
Robitussin DM Robitussin AC
Robitussin DM Rondec DM
Rocephin Ceftin
Rondec DM Robitussin DM
Ropinirole Raloxifene
Ropinirole Risperidone
Ropivacaine Bupivacaine
Rosiglitazone Pioglitazone
Rosiglitazone Repaglinide
Roxanol Roxicet
Roxanol Roxicodone
Roxanol Roxicodone Intensol
Roxicet Roxanol
Roxicet Roxicodone
Roxicodone Roxanol
Roxicodone Roxicet
Roxicodone Roxicodone Intensol
Roxicodone Intensol Roxanol
Roxicodone Intensol Roxicodone
Rynatan Rynatuss
Rynatuss Rynatan
Salagen Selegiline
Salbutamol
(Albuterol in other countries)		 Salmeterol
Salmeterol Salbutamol
(Albuterol in other countries)
Salsalate Sulfasalazine
Sarafem Serophene
Selegiline Salagen
Selegiline Serentil Sertraline Serzone
Selegiline Sertraline
Senna Soma
Senokot Depakote
Senokot Sinemet
Seracult Hemoccult
Serentil Selegiline Sertraline Serzone
Serentil Seroquel
Serentil Serzone
Serentil Sinequan
Serevent Atrovent
Serevent Serevent Diskus
Serevent Diskus Serevent
Serophene Sarafem
Seroquel Serentil
Seroquel Serzone Sinequan
Seroquel Symmetrel
Seroquel Sertraline
Sertraline Selegiline Serentil Serzone
Sertraline Seroquel
Serzone Seroquel Sinequan
Serzone Sertraline Selegiline Serentil
Sinemet Senokot
Sinemet Sinemet CR
Sinemet CR Sinemet
Sinequan Serentil
Sinequan Seroquel Serzone
Sinequan Singulair
Singulair Sinequan
Slo-bid Dolobid
Slo-bid Lopid Lorabid
Slow Fe Slow-K
Slow-K Slow Fe
Sodium Bicarbonate Sodium Chloride
Sodium Chloride Potassium Chloride
Sodium Chloride Sodium Bicarbonate
Sodium
Phosphates		 Potassium
Phosphates
Solu-Cortef Solu-Medrol
Solu-Medrol Depo-Medrol
Solu-Medrol Solu-Cortef
Soma Senna
Soma Soma Compound
Soma Compound Soma
Soriatane Loxitane
Sotalol Subdue
Stadol Haldol
Stadol Toradol
Subdue Sotalol
Sufentanil Citrate Fentanyl Citrate
Sulfadiazine Sulfasalazine
Sulfasalazine Mesalamine
Sulfasalazine Salsalate
Sulfasalazine Sulfadiazine
Sulfasalazine Sulfisoxazole
Sulfisoxazole Sulfasalazine
Sumatriptan Zolmitriptan
Suprax Surfak
Surfak Suprax
Surgilube Lacrilube
Symmetrel Amaryl
Symmetrel Seroquel
Symmetrel Synthroid
Synagis Synvisc
Synthroid Symmetrel
Synvisc Synagis
Tambocor Temodar
Tamiflu Tamoxifen
Tamiflu Theraflu
Tamoxifen Tamiflu
Tamoxifen Tamsulosin
Tamsulosin Tamoxifen
Taxol Paxil
Taxol Taxotere
Taxotere Taxol
Tegretol Toradol
Tegretol Trental
Tegretol Trileptal
Tegretol-XR Toprol-XL
Temazepam Flurazepam
Temazepam Lorazepam
Temazepam Oxazepam
Temodar Tambocor
Tenormin Imuran
Tenormin Thiamine
Tenormin Trovan
Tequin Levaquin
Tequin Ticlid
Terazosin Prazosin
Terazosin Doxazosin
Testoderm Estraderm
Tetanus Toxoid Diphtheria and Tetanus Toxoid
Tetracycline Tetradecyl Sulfate
Tetradecyl Sulfate Tetracycline
Thalitone Thalomid
Thalomid Thalitone
Theraflu Tamiflu
Thiamine Tenormin
Thioridazine Chlorpromazine
Thorazine Thioridazine
Thioridazine Thorazine
Tiagabine Tizanidine
Tiazac Tigan
Tiazac Ziac
Ticlid Tequin
Tigan Tiazac
Timoptic Timoptic-XE
Timoptic-XE Timoptic
Tizanidine Nizatidine
Tizanidine Tiagabine
TNKase t-PA
(Synonym for Alteplase, recombinant)
Tobradex Tobrex
Tobramycin Gentamicin
Tobrex Tobradex
Tolazamide Tolbutamide
Tolbutamide Tolazamide
Tolcapone Tolterodine
Tolterodine Tolcapone
Topamax Toprol-XL
Topiramate Torsemide
Toprol-XL Tegretol-XR
Toprol-XL Topamax
Toradol Foradil
Toradol Inderal
Toradol Stadol
Toradol Tegretol
Toradol Torecan
Toradol Tramadol
Torecan Toradol
Torsemide Furosemide
Torsemide Topiramate
t-PA
(Synonym for Alteplase, recombinant)		 TNKase
Tramadol Toradol
Tramadol Trandolapril
Tramadol Trazodone
Tramadol Voltaren
Trandate Trental
Trandate Tridrate
Trandolapril Tramadol
Trazodone Amiodarone
Trazodone Tramadol
Trental Tegretol
Trental Trandate
Triad
(Butalbital/
Acetaminophen/
Caffeine)		 Triad
(topical)
Triad
(topical)		 Triad
(Butalbital/
Acetaminophen/
Caffeine)
Triamterene Trimethoprim
Tridrate Trandate
Trifluoperazine Fluphenazine
Trifluoperazine Trihexyphenidyl
Trihexyphenidyl Trifluoperazine
Trileptal Tegretol
Tri-Levlen Levlen
Tri-Levlen Ortho Tri-Cyclen
Trimethoprim Triamterene
Tri-Nasal Triphasil
Tri-Norinyl Triphasil
Triphasil Tri-Nasal
Triphasil Tri-Norinyl
Trovan Tenormin
Trusopt Cosopt
Tylenol Tylenol
w/ Codeine
Tylenol Children's Tylenol
w/ Codeine
Tylenol
w/ Codeine		 Tylenol
Tylenol
w/ Codeine		 Tylenol Children's

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