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