Drug Look Alike Sound Alike

A

Drug Name	Looks like
Abelcet (Amphotericin B Lipid Complex)	amphotericin B (Amphotericin B)
Accupril (Quinapril Hydrochloride)	Aciphex (Rabeprazole Sodium)
acetaZOLAMIDE (Acetazolamide)	acetoHEXAMIDE ()
Acetic Acid for Irrigation (Acetic Acid)	Glacial Acetic Acid (Acetic Acid)
acetoHEXAMIDE ()	acetaZOLAMIDE (Acetazolamide)
Aciphex (Rabeprazole Sodium)	Accupril (Quinapril Hydrochloride)
Aciphex (Rabeprazole Sodium)	Aricept (Donepezil Hydrochloride)
Activase (Alteplase, Recombinant)	Cathflo Activase (Alteplase, Recombinant)
Activase (Alteplase, Recombinant)	TNKase (Tenecteplase)
Actonel (Risedronate Sodium)	Actos (Pioglitazone Hydrochloride)
Actos (Pioglitazone Hydrochloride)	Actonel (Risedronate Sodium)
Adacel (Tdap) (Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine)	Daptacel (DTaP) (Diphtheria, Tetanus, Acellular Pertussis Vaccine)
Adderall (Dextroamphetamine/Amphetamine)	Adderall XR (Dextroamphetamine/Amphetamine)
Adderall (Dextroamphetamine/Amphetamine)	Inderal (Propranolol Hydrochloride)
Adderall XR (Dextroamphetamine/Amphetamine)	Adderall (Dextroamphetamine/Amphetamine)
Advair (Fluticasone Propionate/Salmeterol Xinafoate)	Advicor (Niacin/Lovastatin)
Advicor (Niacin/Lovastatin)	Advair (Fluticasone Propionate/Salmeterol Xinafoate)
Advicor (Niacin/Lovastatin)	Altocor (Lovastatin)
Afrin (oxymetazoline) (Oxymetazoline Hydrochloride)	Afrin (saline) (Sodium Chloride)
Afrin (saline) (Sodium Chloride)	Afrin (oxymetazoline) (Oxymetazoline Hydrochloride)
Aggrastat (Tirofiban Hydrochloride)	argatroban (Argatroban)
Aldara (Imiquimod)	Alora (Estradiol)
Alkeran (Melphalan)	Leukeran (Chlorambucil)
Alkeran (Melphalan)	Myleran (Busulfan)
Allegra (Fexofenadine Hydrochloride)	Viagra (Sildenafil Citrate)
Alora (Estradiol)	Aldara (Imiquimod)
ALPRAZolam (Alprazolam)	LORazepam (Lorazepam)
Altocor (Lovastatin)	Advicor (Niacin/Lovastatin)
amantadine (Amantadine Hydrochloride)	amiodarone (Amiodarone Hydrochloride)
Amaryl (Glimepiride)	Reminyl (Galantamine Hydrobromide)
Ambisome (Amphotericin B Liposome)	amphotericin B (Amphotericin B)
Amicar (Aminocaproic Acid)	Omacor (Omega-3-Acid Ethyl Esters)
Amikin (Amikacin Sulfate)	Kineret (Anakinra)
aMILoride (Amiloride Hydrochloride)	amLODIPine (Amlodipine Besylate)
amino acids ()	aminocaproic acid (Aminocaproic Acid)
aminocaproic acid (Aminocaproic Acid)	amino acids ()
amiodarone (Amiodarone Hydrochloride)	amantadine (Amantadine Hydrochloride)
amLODIPine (Amlodipine Besylate)	aMILoride (Amiloride Hydrochloride)
amoxicillin (Amoxicillin)	Augmentin (Amoxicillin/Clavulanate Potassium)
amphotericin B (Amphotericin B)	Abelcet (Amphotericin B Lipid Complex)
amphotericin B (Amphotericin B)	Ambisome (Amphotericin B Liposome)
Ampicillin (Ampicillin)	Nafcillin Sodium (Nafcillin Sodium)
antacid ()	Atacand (Candesartan Cilexetil)
Antivert (Meclizine Hydrochloride)	Axert (Almotriptan Malate)
Anzemet (Dolasetron Mesylate)	Avandamet (Rosiglitazone Maleate/Metformin Hydrochloride)
Apresoline (Hydralazine Hydrochloride)	Priscoline ()
argatroban (Argatroban)	Aggrastat (Tirofiban Hydrochloride)
argatroban (Argatroban)	Orgaran (Danaparoid Sodium)
Aricept (Donepezil Hydrochloride)	Aciphex (Rabeprazole Sodium)
Aricept (Donepezil Hydrochloride)	Azilect (Rasagiline)
aripiprazole (Aripiprazole)	proton pump inhibitors (Omeprazole)
aripiprazole (Aripiprazole)	proton pump inhibitors (Lansoprazole)
aripiprazole (Aripiprazole)	proton pump inhibitors (Pantoprazole Sodium)
aripiprazole (Aripiprazole)	proton pump inhibitors (Rabeprazole Sodium)
aripiprazole (Aripiprazole)	proton pump inhibitors (Esomeprazole Magnesium)
aripiprazole (Aripiprazole)	proton pump inhibitors (Esomeprazole Sodium)
ARIPiprazole (Aripiprazole)	RABEprazole (Rabeprazole Sodium)
Arista AH ()	Arixtra (Fondaparinux Sodium)
Arixtra (Fondaparinux Sodium)	Arista AH ()
Asacol (Mesalamine)	Os-Cal (Calcium Carbonate)
Astelin (Azelastine Hydrochloride)	Avastin (Bevacizumab)
Atacand (Candesartan Cilexetil)	antacid ()
Atrovent (Ipratropium Bromide)	Natru-Vent ()
Augmentin (Amoxicillin/Clavulanate Potassium)	amoxicillin (Amoxicillin)
Avandamet (Rosiglitazone Maleate/Metformin Hydrochloride)	Anzemet (Dolasetron Mesylate)
Avandia (Rosiglitazone Maleate)	Coumadin (Warfarin Sodium)
Avandia (Rosiglitazone Maleate)	Prandin (Repaglinide)
Avastin (Bevacizumab)	Astelin (Azelastine Hydrochloride)
AVINza (Morphine Sulfate)	Evista (Raloxifene Hydrochloride)
AVINza (Morphine Sulfate)	INVanz (Ertapenem Sodium)
Axert (Almotriptan Malate)	Antivert (Meclizine Hydrochloride)
azaCITIDine (Azacitidine)	azaTHIOprine (Azathioprine)
azaTHIOprine (Azathioprine)	azaCITIDine (Azacitidine)
Azilect (Rasagiline)	Aricept (Donepezil Hydrochloride)

B

Drug Name	Looks like
BabyBIG (Botulism Immune Globulin)	HBIG (Hepatitis B Immune Globulin)
Bayhep-B (Hepatitis B Immune Globulin)	Bayrab (Rabies Immune Globulin)
Bayhep-B (Hepatitis B Immune Globulin)	BayRho-D (Rho(D) Immune Globulin)
Bayrab (Rabies Immune Globulin)	Bayhep-B (Hepatitis B Immune Globulin)
Bayrab (Rabies Immune Globulin)	BayRho-D (Rho(D) Immune Globulin)
BayRho-D (Rho(D) Immune Globulin)	Bayhep-B (Hepatitis B Immune Globulin)
BayRho-D (Rho(D) Immune Globulin)	Bayrab (Rabies Immune Globulin)
Benadryl (Diphenhydramine Hydrochloride)	benazepril ()
benazepril ()	Benadryl (Diphenhydramine Hydrochloride)
Benicar (Olmesartan Medoxomil)	Mevacor (Lovastatin)
Bicillin C-R (Penicillin G Benzathine/Penicillin G Procaine)	Bicillin L-A (Penicillin G Benzathine)
Bicillin L-A (Penicillin G Benzathine)	Bicillin C-R (Penicillin G Benzathine/Penicillin G Procaine)
Bicitra ()	Polycitra (Citric Acid/Potassium Citrate)
Bidex (Guaifenesin)	Videx (Didanosine)
Brethine (Terbutaline Sulfate)	Methergine (Methylergonovine Maleate)
Brevibloc (Esmolol Hydrochloride)	Brevital (Methohexital Sodium)
Brevital (Methohexital Sodium)	Brevibloc (Esmolol Hydrochloride)
Brilinta (Ticagrelor)	Brintellix (Vortioxetine Hydrobromide)
Brintellix (Vortioxetine Hydrobromide)	Brilinta (Ticagrelor)
BuPROPion (Bupropion Hydrochloride)	BusPIRone (Buspirone Hydrochloride)
BusPIRone (Buspirone Hydrochloride)	BuPROPion (Bupropion Hydrochloride)

C

Drug Name	Looks like
calcium disodium EDTA (Edetate Calcium Disodium)	disodium EDTA (Edetate Disodium)
Calcium Disodium Versenate (Edetate Calcium Disodium)	Endrate (Edetate Disodium)
camphorated tincture of opium (Opium)	opium tincture (Opium)
Capadex (Acetaminophen)	Kapidex (Dexlansoprazole)
Capex (Fluocinolone Acetonide)	Kapidex (Dexlansoprazole)
captopril (Captopril)	carvedilol (Carvedilol)
Carac (Fluorouracil)	Kuric (Ketoconazole)
carBAMazepine (Carbamazepine)	OXcarbazepine (Oxcarbazepine)
CARBOplatin (Carboplatin)	CISplatin (Cisplatin)
Cardura (Doxazosin Mesylate)	Coumadin (Warfarin Sodium)
Carnitor (Levocarnitine)	Keppra (Levetiracetam)
carvedilol (Carvedilol)	captopril (Captopril)
Casodex (Bicalutamide)	Kapidex (Dexlansoprazole)
Cathflo Activase (Alteplase, Recombinant)	Activase (Alteplase, Recombinant)
Cedax (Ceftibuten)	Cidex ()
ceFAZolin (Cefazolin Sodium)	cefoTEtan (Cefotetan Disodium)
ceFAZolin (Cefazolin Sodium)	cefOXitin (Cefoxitin Sodium)
ceFAZolin (Cefazolin Sodium)	cefTAZidime (Ceftazidime)
ceFAZolin (Cefazolin Sodium)	cefTRIAXone (Ceftriaxone Sodium)
cefepime (Cefepime Hydrochloride)	ceftazidime (Ceftazidime)
cefoTEtan (Cefotetan Disodium)	ceFAZolin (Cefazolin Sodium)
cefoTEtan (Cefotetan Disodium)	cefOXitin (Cefoxitin Sodium)
cefoTEtan (Cefotetan Disodium)	cefTAZidime (Ceftazidime)
cefoTEtan (Cefotetan Disodium)	cefTRIAXone (Ceftriaxone Sodium)
cefOXitin (Cefoxitin Sodium)	ceFAZolin (Cefazolin Sodium)
cefOXitin (Cefoxitin Sodium)	cefoTEtan (Cefotetan Disodium)
cefOXitin (Cefoxitin Sodium)	cefTAZidime (Ceftazidime)
cefOXitin (Cefoxitin Sodium)	cefTRIAXone (Ceftriaxone Sodium)
cefTAZidime (Ceftazidime)	ceFAZolin (Cefazolin Sodium)
ceftazidime (Ceftazidime)	cefepime (Cefepime Hydrochloride)
cefTAZidime (Ceftazidime)	cefoTEtan (Cefotetan Disodium)
cefTAZidime (Ceftazidime)	cefOXitin (Cefoxitin Sodium)
cefTAZidime (Ceftazidime)	cefTRIAXone (Ceftriaxone Sodium)
cefTRIAXone (Ceftriaxone Sodium)	ceFAZolin (Cefazolin Sodium)
cefTRIAXone (Ceftriaxone Sodium)	cefoTEtan (Cefotetan Disodium)
cefTRIAXone (Ceftriaxone Sodium)	cefOXitin (Cefoxitin Sodium)
cefTRIAXone (Ceftriaxone Sodium)	cefTAZidime (Ceftazidime)
CeleBREX (Celecoxib)	CeleXA (Citalopram Hydrobromide)
CeleBREX (Celecoxib)	Cerebyx (Fosphenytoin Sodium)
CeleXA (Citalopram Hydrobromide)	CeleBREX (Celecoxib)
CeleXA (Citalopram Hydrobromide)	Cerebyx (Fosphenytoin Sodium)
CeleXA (Citalopram Hydrobromide)	ZyPREXA (Olanzapine)
Cerebyx (Fosphenytoin Sodium)	CeleBREX (Celecoxib)
Cerebyx (Fosphenytoin Sodium)	CeleXA (Citalopram Hydrobromide)
cetirizine (Cetirizine Hydrochloride)	sertraline (Sertraline Hydrochloride)
cetuximab (Cetuximab)	rituximab (Rituximab)
chlordiazePOXIDE (Chlordiazepoxide Hydrochloride)	chlorproMAZINE ()
chlordiazePOXIDE (Chlordiazepoxide Hydrochloride)	chlorproMAZINE hydrochloride (Chlorpromazine Hydrochloride)
chlorproMAZINE ()	chlordiazePOXIDE (Chlordiazepoxide Hydrochloride)
chlorproMAZINE ()	chlorproPAMIDE (Chlorpropamide)
chlorproMAZINE (Chlorpromazine Hydrochloride)	chlorproPAMIDE (Chlorpropamide)
chlorproMAZINE hydrochloride (Chlorpromazine Hydrochloride)	chlordiazePOXIDE (Chlordiazepoxide Hydrochloride)
chlorproPAMIDE (Chlorpropamide)	chlorproMAZINE ()
chlorproPAMIDE (Chlorpropamide)	chlorproMAZINE (Chlorpromazine Hydrochloride)
cholecalciferol (Cholecalciferol)	ergocalciferol (Ergocalciferol)
Cidex ()	Cedax (Ceftibuten)
CISplatin (Cisplatin)	CARBOplatin (Carboplatin)
Claritin (Loratadine)	Claritin Eye (Ketotifen Fumarate)
Claritin Eye (Ketotifen Fumarate)	Claritin (Loratadine)
Claritin-D (Loratadine/Pseudoephedrine Sulfate)	Claritin-D 24 (Loratadine/Pseudoephedrine Sulfate)
Claritin-D 24 (Loratadine/Pseudoephedrine Sulfate)	Claritin-D (Loratadine/Pseudoephedrine Sulfate)
Clindesse (Clindamycin Phosphate)	Clindets (Clindamycin Phosphate)
Clindets (Clindamycin Phosphate)	Clindesse (Clindamycin Phosphate)
Clinoril (Sulindac)	Clozaril (Clozapine)
cloBAZam (Clobazam)	clonazePAM (Clonazepam)
clomiPHENE (Clomiphene Citrate)	clomiPRAMINE (Clomipramine Hydrochloride)
clomiPRAMINE (Clomipramine Hydrochloride)	clomiPHENE (Clomiphene Citrate)
clonazePAM (Clonazepam)	cloBAZam (Clobazam)
clonazePAM (Clonazepam)	cloNIDine (Clonidine)
clonazePAM (Clonazepam)	cloNIDine hydrochloride (Clonidine Hydrochloride)
clonazePAM (Clonazepam)	cloZAPine (Clozapine)
clonazePAM (Clonazepam)	LORazepam (Lorazepam)
cloNIDine (Clonidine)	clonazePAM (Clonazepam)
cloNIDine (Clonidine)	cloZAPine (Clozapine)
cloNIDine (Clonidine Hydrochloride)	cloZAPine (Clozapine)
cloNIDine (Clonidine)	KlonoPIN (Clonazepam)
cloNIDine hydrochloride (Clonidine Hydrochloride)	clonazePAM (Clonazepam)
cloNIDine hydrochloride (Clonidine Hydrochloride)	KlonoPIN (Clonazepam)
cloZAPine (Clozapine)	clonazePAM (Clonazepam)
cloZAPine (Clozapine)	cloNIDine (Clonidine)
cloZAPine (Clozapine)	cloNIDine (Clonidine Hydrochloride)
Clozaril (Clozapine)	Clinoril (Sulindac)
Clozaril (Clozapine)	Colazal (Balsalazide Disodium)
coagulation factor IX recombinant (Coagulation Factor IX Recombinant)	factor IX complex, vapor heated (Factor IX Complex Human)
codeine ()	Lodine (Etodolac)
codeine (Codeine Sulfate)	Lodine (Etodolac)
Colace (Docusate Sodium)	Cozaar (Losartan Potassium)
Colazal (Balsalazide Disodium)	Clozaril (Clozapine)
colchicine (Colchicine)	Cortrosyn (Cosyntropin)
Comvax (Haemophilus B Conjugate and Hepatitis B Vaccine)	Recombivax HB (Hepatitis B Vaccine Recombinant)
Cortrosyn (Cosyntropin)	colchicine (Colchicine)
Coumadin (Warfarin Sodium)	Avandia (Rosiglitazone Maleate)
Coumadin (Warfarin Sodium)	Cardura (Doxazosin Mesylate)
Cozaar (Losartan Potassium)	Colace (Docusate Sodium)
Cozaar (Losartan Potassium)	Zocor (Simvastatin)
cycloSERINE (Cycloserine)	cycloSPORINE (Cyclosporine)
cycloSERINE (Cycloserine)	cycloSPORINE (Cyclosporine, Modified)
cycloSPORINE (Cyclosporine)	cycloSERINE (Cycloserine)
cycloSPORINE (Cyclosporine, Modified)	cycloSERINE (Cycloserine)
Cymbalta (Duloxetine Hydrochloride)	Symbyax (Olanzapine/Fluoxetine Hydrochloride)

D

Drug Name	Looks like
DACTINomycin (Dactinomycin)	DAPTOmycin (Daptomycin)
Daptacel (DTaP) (Diphtheria, Tetanus, Acellular Pertussis Vaccine)	Adacel (Tdap) (Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine)
DAPTOmycin (Daptomycin)	DACTINomycin (Dactinomycin)
Darvocet (Acetaminophen)	Percocet (Acetaminophen/Oxycodone Hydrochloride)
Darvon ()	Diovan (Valsartan)
DAUNOrubicin (Daunorubicin Hydrochloride)	DAUNOrubicin citrate liposomal (Daunorubicin Citrate Liposome)
DAUNOrubicin (Daunorubicin Hydrochloride)	DOXOrubicin (Doxorubicin Hydrochloride)
DAUNOrubicin (Daunorubicin Citrate Liposome)	DOXOrubicin (Doxorubicin Hydrochloride)
DAUNOrubicin (Daunorubicin Citrate Liposome)	DOXOrubicin (Doxorubicin Hydrochloride Liposome)
daunorubicin (Daunorubicin Hydrochloride)	idarubicin (Idarubicin Hydrochloride)
DAUNOrubicin (Daunorubicin Citrate Liposome)	IDArubicin (Idarubicin Hydrochloride)
DAUNOrubicin citrate liposomal (Daunorubicin Citrate Liposome)	DAUNOrubicin (Daunorubicin Hydrochloride)
Denavir (Penciclovir)	indinavir (Indinavir Sulfate)
Depakote (Divalproex Sodium)	Depakote ER (Divalproex Sodium)
Depakote ER (Divalproex Sodium)	Depakote (Divalproex Sodium)
Depo-Medrol (Methylprednisolone Acetate)	Solu-MEDROL (Methylprednisolone Sodium Succinate)
Depo-Provera (Medroxyprogesterone Acetate)	Depo-subQ provera 104 (Medroxyprogesterone Acetate)
Depo-subQ provera 104 (Medroxyprogesterone Acetate)	Depo-Provera (Medroxyprogesterone Acetate)
desipramine (Desipramine Hydrochloride)	disopyramide (Disopyramide Phosphate)
dexamethasone (Dexamethasone)	dextromethorphan ()
dexmethylphenidate hydrochloride (Dexmethylphenidate Hydrochloride)	methadone (Methadone Hydrochloride)
dextromethorphan ()	dexamethasone (Dexamethasone)
Diabeta (Glyburide)	Zebeta (Bisoprolol Fumarate)
Diabinese (Chlorpropamide)	Diamox (Acetazolamide)
Diamox (Acetazolamide)	Diabinese (Chlorpropamide)
Diatex (Diazepam)	Diatx ()
Diatx ()	Diatex (Diazepam)
Diazepam (Diazepam)	Diltiazem ()
Diflucan (Fluconazole)	Diprivan (Propofol)
Dilacor XR (Diltiazem Hydrochloride)	Pilocar ()
Dilaudid (Hydromorphone Hydrochloride)	Dilaudid-5 (Hydromorphone Hydrochloride)
Dilaudid-5 (Hydromorphone Hydrochloride)	Dilaudid (Hydromorphone Hydrochloride)
Diltiazem ()	Diazepam (Diazepam)
dimenhyDRINATE (Dimenhydrinate)	diphenhydrAMINE (Diphenhydramine Hydrochloride)
Dioval (Estradiol Valerate)	Diovan (Valsartan)
Diovan (Valsartan)	Darvon ()
Diovan (Valsartan)	Dioval (Estradiol Valerate)
Diovan (Valsartan)	Zyban (Bupropion Hydrochloride)
diphenhydrAMINE (Diphenhydramine Hydrochloride)	dimenhyDRINATE (Dimenhydrinate)
Diprivan (Propofol)	Diflucan (Fluconazole)
Diprivan (Propofol)	Ditropan (Oxybutynin Chloride)
disodium EDTA (Edetate Disodium)	calcium disodium EDTA (Edetate Calcium Disodium)
disopyramide (Disopyramide Phosphate)	desipramine (Desipramine Hydrochloride)
Ditropan (Oxybutynin Chloride)	Diprivan (Propofol)
DOBUtamine (Dobutamine Hydrochloride)	DOPamine (Dopamine Hydrochloride)
DOPamine (Dopamine Hydrochloride)	DOBUtamine (Dobutamine Hydrochloride)
Doribax (Doripenem)	Zovirax (Acyclovir)
Doxil (Doxorubicin Hydrochloride Liposome)	Paxil (Paroxetine Hydrochloride)
DOXOrubicin (Doxorubicin Hydrochloride)	DAUNOrubicin (Daunorubicin Hydrochloride)
DOXOrubicin (Doxorubicin Hydrochloride)	DAUNOrubicin (Daunorubicin Citrate Liposome)
DOXOrubicin (Doxorubicin Hydrochloride Liposome)	DAUNOrubicin (Daunorubicin Citrate Liposome)
DOXOrubicin hydrochloride (Doxorubicin Hydrochloride)	DOXOrubicin liposomal (Doxorubicin Hydrochloride Liposome)
DOXOrubicin hydrochloride (Doxorubicin Hydrochloride)	IDArubicin hydrochloride (Idarubicin Hydrochloride)
DOXOrubicin hydrochloride liposomal (Doxorubicin Hydrochloride Liposome)	IDArubicin hydrochloride (Idarubicin Hydrochloride)
DOXOrubicin liposomal (Doxorubicin Hydrochloride Liposome)	DOXOrubicin hydrochloride (Doxorubicin Hydrochloride)
Dulcolax (bisacodyl) (Bisacodyl)	Dulcolax (docusate sodium) (Docusate Sodium)
Dulcolax (docusate sodium) (Docusate Sodium)	Dulcolax (bisacodyl) (Bisacodyl)
DULoxetine hydrochloride (Duloxetine Hydrochloride)	FLUoxetine hydrochloride (Fluoxetine Hydrochloride)
Durasal (Salicylic Acid)	Durasal II (Pseudoephedrine Hydrochloride)
Durasal (Salicylic Acid)	Durezol (Difluprednate)
Durasal II (Pseudoephedrine Hydrochloride)	Durasal (Salicylic Acid)
Durezol (Difluprednate)	Durasal (Salicylic Acid)
Duricef (Cefadroxil)	Ultracet (Tramadol Hydrochloride/Acetaminophen)
Dynacin (Minocycline Hydrochloride)	Dynacirc (Isradipine)
Dynacirc (Isradipine)	Dynacin (Minocycline Hydrochloride)

E

Drug Name	Looks like
edetate calcium disodium (Edetate Calcium Disodium)	edetate disodium (Edetate Disodium)
edetate disodium (Edetate Disodium)	edetate calcium disodium (Edetate Calcium Disodium)
edetate disodium (Edetate Disodium)	etomidate (Etomidate)
Effexor (Venlafaxine Hydrochloride)	Effexor XR (Venlafaxine Hydrochloride)
Effexor XR (Venlafaxine Hydrochloride)	Effexor (Venlafaxine Hydrochloride)
Effient (Prasugrel Hydrochloride)	Ethedent (Sodium Fluoride)
Enbrel (Etanercept)	Levbid ()
Endocet (Acetaminophen/Oxycodone Hydrochloride)	Indocid (Indomethacin)
Endrate (Edetate Disodium)	Calcium Disodium Versenate (Edetate Calcium Disodium)
Engerix-B adult (Hepatitis B Vaccine Recombinant)	Engerix-B pediatric/adolescent (Hepatitis B Vaccine Recombinant)
Engerix-B pediatric/adolescent (Hepatitis B Vaccine Recombinant)	Engerix-B adult (Hepatitis B Vaccine Recombinant)
Enjuvia (Conjugated Estrogens Synthetic B)	Januvia (Sitagliptin Phosphate)
ePHEDrine (Ephedrine)	EPINEPHrine (Epinephrine)
EPINEPHrine (Epinephrine)	ePHEDrine (Ephedrine)
EPIrubicin (Epirubicin Hydrochloride)	eriBULin (Eribulin Mesylate)
ergocalciferol (Ergocalciferol)	cholecalciferol (Cholecalciferol)
eriBULin (Eribulin Mesylate)	EPIrubicin (Epirubicin Hydrochloride)
Estratest (Esterified Estrogens/Methyltestosterone)	Estratest HS (Esterified Estrogens/Methyltestosterone)
Estratest HS (Esterified Estrogens/Methyltestosterone)	Estratest (Esterified Estrogens/Methyltestosterone)
ethambutol (Ethambutol Hydrochloride)	Ethmozine ()
Ethedent (Sodium Fluoride)	Effient (Prasugrel Hydrochloride)
Ethmozine ()	ethambutol (Ethambutol Hydrochloride)
etomidate (Etomidate)	edetate disodium (Edetate Disodium)
Evista (Raloxifene Hydrochloride)	AVINza (Morphine Sulfate)

F

Drug Name	Looks like
factor IX complex, vapor heated (Factor IX Complex Human)	coagulation factor IX recombinant (Coagulation Factor IX Recombinant)
Fanapt (Iloperidone)	Xanax (Alprazolam)
Fanapt (Iloperidone)	Zantac (Ranitidine Hydrochloride)
Farxiga (Dapagliflozin Propanediol)	Fetzima (Levomilnacipran Hydrochloride)
Femara (Letrozole)	Femhrt (Ethinyl Estradiol/Norethindrone Acetate)
Femhrt (Ethinyl Estradiol/Norethindrone Acetate)	Femara (Letrozole)
fentaNYL (Fentanyl)	SUFentanil (Sufentanil Citrate)
fentaNYL (Fentanyl Citrate)	SUFentanil (Sufentanil Citrate)
Fetzima (Levomilnacipran Hydrochloride)	Farxiga (Dapagliflozin Propanediol)
Fioricet (Butalbital/Acetaminophen/Caffeine)	Fiorinal (Aspirin/Butalbital/Caffeine)
Fiorinal (Aspirin/Butalbital/Caffeine)	Fioricet (Butalbital/Acetaminophen/Caffeine)
flavoxATE (Flavoxate Hydrochloride)	fluPHENAZine (Fluphenazine Decanoate)
flavoxATE (Flavoxate Hydrochloride)	fluPHENAZine (Fluphenazine Hydrochloride)
flavoxATE (Flavoxate Hydrochloride)	fluvoxaMINE (Fluvoxamine Maleate)
Flonase (Fluticasone Propionate)	Flovent ()
Flovent ()	Flonase (Fluticasone Propionate)
flumazenil (Flumazenil)	influenza virus vaccine ()
Flumist (Influenza Virus Vaccine, Live)	Fluzone (Influenza Virus Vaccine (Subvirion))
Fluoxetine (Fluoxetine Hydrochloride)	Loxitane (Loxapine Succinate)
FLUoxetine hydrochloride (Fluoxetine Hydrochloride)	DULoxetine hydrochloride (Duloxetine Hydrochloride)
FLUoxetine hydrochloride (Fluoxetine Hydrochloride)	PARoxetine hydrochloride (Paroxetine Hydrochloride)
fluPHENAZine (Fluphenazine Decanoate)	flavoxATE (Flavoxate Hydrochloride)
fluPHENAZine (Fluphenazine Hydrochloride)	flavoxATE (Flavoxate Hydrochloride)
fluPHENAZine (Fluphenazine Decanoate)	fluvoxaMINE (Fluvoxamine Maleate)
fluPHENAZine (Fluphenazine Hydrochloride)	fluvoxaMINE (Fluvoxamine Maleate)
fluvoxaMINE (Fluvoxamine Maleate)	flavoxATE (Flavoxate Hydrochloride)
fluvoxaMINE (Fluvoxamine Maleate)	fluPHENAZine (Fluphenazine Decanoate)
fluvoxaMINE (Fluvoxamine Maleate)	fluPHENAZine (Fluphenazine Hydrochloride)
Fluzone (Influenza Virus Vaccine (Subvirion))	Flumist (Influenza Virus Vaccine, Live)
Folex (Methotrexate Sodium)	Foltx (Folic Acid)
Folex (Methotrexate)	Foltx (Folic Acid)
folic acid (Folic Acid)	folinic acid (Leucovorin Calcium)
folinic acid (Leucovorin Calcium)	folic acid (Folic Acid)
Foltx (Folic Acid)	Folex (Methotrexate Sodium)
Foltx (Folic Acid)	Folex (Methotrexate)
fomepizole (Fomepizole)	omeprazole (Omeprazole)
Foradil (Formoterol Fumarate)	Fortical ()
Foradil (Formoterol Fumarate)	Toradol (Ketorolac Tromethamine)
Fortical ()	Foradil (Formoterol Fumarate)
fosphenytoin ()	phenytoin (Phenytoin)

G

Drug Name	Looks like
Gabitril ()	Suboxone (Buprenorphine/Naloxone)
galantamine (Galantamine Hydrobromide)	glimepiride (Glimepiride)
gentamicin (Gentamicin Sulfate)	gentian violet (Gentian Violet)
gentian violet (Gentian Violet)	gentamicin (Gentamicin Sulfate)
Genvoya (Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide)	Stribild (Elvitegravir/Cobicistat/Emtricitabine/Tenofovir)
Glacial Acetic Acid (Acetic Acid)	Acetic Acid for Irrigation (Acetic Acid)
glimepiride (Glimepiride)	galantamine (Galantamine Hydrobromide)
glipiZIDE (Glipizide)	glyBURIDE (Glyburide)
glyBURIDE (Glyburide)	glipiZIDE (Glipizide)
Granulex (Balsam Peru/Castor Oil/Trypsin)	Regranex (Becaplermin)
guaiFENesin (Guaifenesin)	guanFACINE (Guanfacine Hydrochloride)
guanFACINE (Guanfacine Hydrochloride)	guaiFENesin (Guaifenesin)

H

Drug Name	Looks like
HBIG (Hepatitis B Immune Globulin)	BabyBIG (Botulism Immune Globulin)
Healon (Hyaluronic Acid)	Hyalgan (Hyaluronate Sodium)
heparin (Heparin Sodium)	Hespan (Hetastarch/Sodium Chloride)
Herceptin (Trastuzumab)	Kadcyla (Ado-Trastuzumab Emtansine)
Hespan (Hetastarch/Sodium Chloride)	heparin (Heparin Sodium)
Hiprex ()	Mirapex (Pramipexole Dihydrochloride)
HumaLOG (Insulin Lispro, Recombinant)	HumuLIN (Insulin Human Regular)
humaLOG (Insulin Lispro, Recombinant)	NovoLOG (Insulin Aspart, Recombinant)
HumaLOG Mix 75/25 (Insulin Lispro Protamine, Recombinant/Insulin Lispro, Recombinant)	HumuLIN 70/30 (Insulin Human Isophane (NPH)/Insulin Human Regular)
HumaPen (Insulin Lispro, Recombinant)	Humira Pen (Adalimumab)
Humira Pen (Adalimumab)	HumaPen (Insulin Lispro, Recombinant)
HumuLIN (Insulin Human Regular)	HumaLOG (Insulin Lispro, Recombinant)
HumuLIN (Insulin Human Regular)	NovoLIN (Insulin Human Regular)
HumuLIN 70/30 (Insulin Human Isophane (NPH)/Insulin Human Regular)	HumaLOG Mix 75/25 (Insulin Lispro Protamine, Recombinant/Insulin Lispro, Recombinant)
HumuLIN R Concentrated U-500 (Insulin Human Regular)	HumuLIN R U-100 (Insulin Human Regular)
HumuLIN R U-100 (Insulin Human Regular)	HumuLIN R Concentrated U-500 (Insulin Human Regular)
Hyalgan (Hyaluronate Sodium)	Healon (Hyaluronic Acid)
hydrALAZINE (Hydralazine Hydrochloride)	hydrOXYzine (Hydroxyzine Hydrochloride)
hydrALAZINE (Hydralazine Hydrochloride)	hydrOXYzine (Hydroxyzine Pamoate)
HYDROcodone (Hydrocodone Bitartrate)	oxyCODONE hydrochloride (Oxycodone Hydrochloride)
Hydrogesic (Acetaminophen)	hydrOXYzine (Hydroxyzine Hydrochloride)
Hydrogesic (Acetaminophen)	hydrOXYzine (Hydroxyzine Pamoate)
HYDROmorphone (Hydromorphone Hydrochloride)	morphine (Morphine Sulfate)
hydrOXYzine (Hydroxyzine Hydrochloride)	hydrALAZINE (Hydralazine Hydrochloride)
hydrOXYzine (Hydroxyzine Pamoate)	hydrALAZINE (Hydralazine Hydrochloride)
hydrOXYzine (Hydroxyzine Hydrochloride)	Hydrogesic (Acetaminophen)
hydrOXYzine (Hydroxyzine Pamoate)	Hydrogesic (Acetaminophen)

I

Drug Name	Looks like
idarubicin (Idarubicin Hydrochloride)	daunorubicin (Daunorubicin Hydrochloride)
IDArubicin (Idarubicin Hydrochloride)	DAUNOrubicin (Daunorubicin Citrate Liposome)
IDArubicin ()	Idarucizumab (Idarucizumab)
IDArubicin hydrochloride (Idarubicin Hydrochloride)	DOXOrubicin hydrochloride (Doxorubicin Hydrochloride)
IDArubicin hydrochloride (Idarubicin Hydrochloride)	DOXOrubicin hydrochloride liposomal (Doxorubicin Hydrochloride Liposome)
Idarucizumab (Idarucizumab)	IDArubicin ()
Inderal (Propranolol Hydrochloride)	Adderall (Dextroamphetamine/Amphetamine)
indinavir (Indinavir Sulfate)	Denavir (Penciclovir)
Indocid (Indomethacin)	Endocet (Acetaminophen/Oxycodone Hydrochloride)
inFLIXimab (Infliximab)	riTUXimab (Rituximab)
influenza virus vaccine ()	flumazenil (Flumazenil)
influenza virus vaccine (Influenza Virus Vaccine (Subvirion))	tuberculin purified protein derivative (PPD) (Tuberculin)
influenza virus vaccine (Influenza Virus Vaccine, Live)	tuberculin purified protein derivative (PPD) (Tuberculin)
Inspra (Eplerenone)	Spiriva (Tiotropium Bromide)
INVanz (Ertapenem Sodium)	AVINza (Morphine Sulfate)
INVANZ (Ertapenem Sodium)	IV VANC (Vancomycin Hydrochloride)
iodine (Iodine)	Lodine (Etodolac)
Isordil (Isosorbide Dinitrate)	Plendil (Felodipine)
ISOtretinoin (Tretinoin)	tretinoin (Isotretinoin)
IV VANC (Vancomycin Hydrochloride)	INVANZ (Ertapenem Sodium)

J

Drug Name	Looks like
Jantoven (Warfarin Sodium)	Janumet (Sitagliptin Phosphate/Metformin Hydrochloride)
Jantoven (Warfarin Sodium)	Januvia (Sitagliptin Phosphate)
Janumet (Sitagliptin Phosphate/Metformin Hydrochloride)	Jantoven (Warfarin Sodium)
Janumet (Sitagliptin Phosphate/Metformin Hydrochloride)	Januvia (Sitagliptin Phosphate)
Janumet (Sitagliptin Phosphate/Metformin Hydrochloride)	Sinemet (Carbidopa/Levodopa)
Januvia (Sitagliptin Phosphate)	Enjuvia (Conjugated Estrogens Synthetic B)
Januvia (Sitagliptin Phosphate)	Jantoven (Warfarin Sodium)
Januvia (Sitagliptin Phosphate)	Janumet (Sitagliptin Phosphate/Metformin Hydrochloride)

K

Drug Name	Looks like
Kadcyla (Ado-Trastuzumab Emtansine)	Herceptin (Trastuzumab)
Kadian (Morphine Sulfate)	Kapidex (Dexlansoprazole)
Kaletra (Lopinavir/Ritonavir)	Keppra (Levetiracetam)
Kaopectate (bismuth subsalicylate) (Bismuth Subsalicylate)	Kaopectate (docusate calcium) ()
Kaopectate (docusate calcium) ()	Kaopectate (bismuth subsalicylate) (Bismuth Subsalicylate)
Kapidex (Dexlansoprazole)	Capadex (Acetaminophen)
Kapidex (Dexlansoprazole)	Capex (Fluocinolone Acetonide)
Kapidex (Dexlansoprazole)	Casodex (Bicalutamide)
Kapidex (Dexlansoprazole)	Kadian (Morphine Sulfate)
Keflex (Cephalexin)	Keppra (Levetiracetam)
Keflex (Cephalexin)	Valtrex (Valacyclovir Hydrochloride)
Keppra (Levetiracetam)	Carnitor (Levocarnitine)
Keppra (Levetiracetam)	Kaletra (Lopinavir/Ritonavir)
Keppra (Levetiracetam)	Keflex (Cephalexin)
Keppra (Levetiracetam)	Ketalar (Ketamine Hydrochloride)
Ketalar (Ketamine Hydrochloride)	Keppra (Levetiracetam)
Ketalar (Ketamine Hydrochloride)	ketorolac (Ketorolac Tromethamine)
ketorolac (Ketorolac Tromethamine)	Ketalar (Ketamine Hydrochloride)
Ketorolac (Ketorolac Tromethamine)	Methadone (Methadone Hydrochloride)
Kineret (Anakinra)	Amikin (Amikacin Sulfate)
KlonoPIN (Clonazepam)	cloNIDine (Clonidine)
KlonoPIN (Clonazepam)	cloNIDine hydrochloride (Clonidine Hydrochloride)
K-Phos Neutral (Potassium Phosphate/Sodium Phosphate, Monobasic And Dibasic)	Neutra-Phos-K ()
Kuric (Ketoconazole)	Carac (Fluorouracil)

L

Drug Name	Looks like
LaMICtal (Lamotrigine)	LamISIL (Terbinafine Hydrochloride)
LamISIL (Terbinafine Hydrochloride)	LaMICtal (Lamotrigine)
lamiVUDine (Lamivudine)	lamoTRIgine (Lamotrigine)
lamoTRIgine (Lamotrigine)	lamiVUDine (Lamivudine)
lamoTRIgine (Lamotrigine)	levothyroxine (Levothyroxine Sodium)
Lanoxin (Digoxin)	levothyroxine (Levothyroxine Sodium)
Lanoxin (Digoxin)	Levoxine (Levothyroxine Sodium)
Lanoxin (Digoxin)	naloxone (Naloxone Hydrochloride)
lanthanum carbonate (Lanthanum Carbonate)	lithium carbonate (Lithium Carbonate)
Lantus (Insulin Glargine, Recombinant)	Lente ()
Lariam (Mefloquine Hydrochloride)	Levaquin (Levofloxacin)
Lasix (Furosemide)	Losec (Omeprazole)
Lasix (Furosemide)	Luvox (Fluvoxamine Maleate)
Lente ()	Lantus (Insulin Glargine, Recombinant)
Letairis (Ambrisentan)	Letaris (Letrozole)
Letaris (Letrozole)	Letairis (Ambrisentan)
leucovorin calcium (Leucovorin Calcium)	Leukeran (Chlorambucil)
Leukeran (Chlorambucil)	Alkeran (Melphalan)
Leukeran (Chlorambucil)	leucovorin calcium (Leucovorin Calcium)
Leukeran (Chlorambucil)	Myleran (Busulfan)
Levaquin (Levofloxacin)	Lariam (Mefloquine Hydrochloride)
Levbid ()	Enbrel (Etanercept)
Levemir (Insulin Detemir)	Lovenox (Enoxaparin Sodium)
levETIRAcetam (Levetiracetam)	levOCARNitine (Levocarnitine)
levetiracetam (Levetiracetam)	levofloxacin (Levofloxacin)
levOCARNitine (Levocarnitine)	levETIRAcetam (Levetiracetam)
levofloxacin (Levofloxacin)	levetiracetam (Levetiracetam)
levofloxacin (Levofloxacin)	Levophed (Norepinephrine Bitartrate)
Levophed (Norepinephrine Bitartrate)	levofloxacin (Levofloxacin)
levothyroxine (Levothyroxine Sodium)	lamoTRIgine (Lamotrigine)
levothyroxine (Levothyroxine Sodium)	Lanoxin (Digoxin)
Levoxine (Levothyroxine Sodium)	Lanoxin (Digoxin)
Lexapro (Escitalopram Oxalate)	Loxitane (Loxapine Succinate)
Lexapro (Escitalopram Oxalate)	Loxitane (Loxapine)
Lexiva (Fosamprenavir Calcium)	Pexeva (Paroxetine Mesylate)
Lipitor (Atorvastatin Calcium)	lisinopril (Lisinopril)
Lipitor (Atorvastatin Calcium)	Loniten (Minoxidil)
Lipitor (Atorvastatin Calcium)	ZyrTEC (Cetirizine Hydrochloride)
lisinopril (Lisinopril)	Lipitor (Atorvastatin Calcium)
lithium carbonate (Lithium Carbonate)	lanthanum carbonate (Lanthanum Carbonate)
Lodine (Etodolac)	codeine ()
Lodine (Etodolac)	codeine (Codeine Sulfate)
Lodine (Etodolac)	iodine (Iodine)
Loniten (Minoxidil)	Lipitor (Atorvastatin Calcium)
Lopressor (Metoprolol Tartrate)	Lyrica (Pregabalin)
LORazepam (Lorazepam)	ALPRAZolam (Alprazolam)
LORazepam (Lorazepam)	clonazePAM (Clonazepam)
LORazepam (Lorazepam)	Lovaza (Omega-3-Acid Ethyl Esters)
Losec (Omeprazole)	Lasix (Furosemide)
Losec (Omeprazole)	PROzac (Fluoxetine Hydrochloride)
Lotronex (Alosetron Hydrochloride)	Protonix (Pantoprazole Sodium)
Lovaza (Omega-3-Acid Ethyl Esters)	LORazepam (Lorazepam)
Lovenox (Enoxaparin Sodium)	Levemir (Insulin Detemir)
Loxitane (Loxapine Succinate)	Fluoxetine (Fluoxetine Hydrochloride)
Loxitane (Loxapine Succinate)	Lexapro (Escitalopram Oxalate)
Loxitane (Loxapine)	Lexapro (Escitalopram Oxalate)
Loxitane (Loxapine Succinate)	Soriatane (Acitretin)
Loxitane (Loxapine)	Soriatane (Acitretin)
Lunesta (Eszopiclone)	Neulasta (Pegfilgrastim)
Lupron Depot-3 Month (Leuprolide Acetate)	Lupron Depot-Ped (Leuprolide Acetate)
Lupron Depot-Ped (Leuprolide Acetate)	Lupron Depot-3 Month (Leuprolide Acetate)
Luvox (Fluvoxamine Maleate)	Lasix (Furosemide)
Lyrica (Pregabalin)	Lopressor (Metoprolol Tartrate)

M

Drug Name	Looks like
Malarone (Atovaquone/Proguanil Hydrochloride)	Mefloquine (Mefloquine Hydrochloride)
Maxzide (Hydrochlorothiazide/Triamterene)	Microzide (Hydrochlorothiazide)
medroxyPROGESTERone (Medroxyprogesterone Acetate)	methylPREDNISolone (Methylprednisolone)
medroxyPROGESTERone (Medroxyprogesterone Acetate)	methylPREDNISolone (Methylprednisolone Acetate)
medroxyPROGESTERone (Medroxyprogesterone Acetate)	methylPREDNISolone (Methylprednisolone Sodium Succinate)
medroxyPROGESTERone (Medroxyprogesterone Acetate)	methylTESTOSTERone (Methyltestosterone)
Mefloquine (Mefloquine Hydrochloride)	Malarone (Atovaquone/Proguanil Hydrochloride)
Menactra (Meningococcal Polysaccharide Vaccine, Diphtheria Conjugate)	Menomune (Meningococcal Polysaccharide Vaccine)
Menomune (Meningococcal Polysaccharide Vaccine)	Menactra (Meningococcal Polysaccharide Vaccine, Diphtheria Conjugate)
Mephyton (Phytonadione)	methadone (Methadone Hydrochloride)
mesalamine (Mesalamine)	mesna (Mesna)
mesna (Mesna)	mesalamine (Mesalamine)
Metadate (Methylphenidate Hydrochloride)	methadone (Methadone Hydrochloride)
Metadate CD (Methylphenidate Hydrochloride)	Metadate ER (Methylphenidate Hydrochloride)
Metadate ER (Methylphenidate Hydrochloride)	Metadate CD (Methylphenidate Hydrochloride)
Metadate ER (Methylphenidate Hydrochloride)	methadone (Methadone Hydrochloride)
metFORMIN (Metformin Hydrochloride)	metFORMIN extended release (Metformin Hydrochloride)
metFORMIN (Metformin Hydrochloride)	metroNIDAZOLE (Metronidazole)
metFORMIN extended release (Metformin Hydrochloride)	metFORMIN (Metformin Hydrochloride)
methadone (Methadone Hydrochloride)	dexmethylphenidate hydrochloride (Dexmethylphenidate Hydrochloride)
Methadone (Methadone Hydrochloride)	Ketorolac (Ketorolac Tromethamine)
methadone (Methadone Hydrochloride)	Mephyton (Phytonadione)
methadone (Methadone Hydrochloride)	Metadate (Methylphenidate Hydrochloride)
methadone (Methadone Hydrochloride)	Metadate ER (Methylphenidate Hydrochloride)
methadone (Methadone Hydrochloride)	methylphenidate (Methylphenidate Hydrochloride)
methadone (Methadone Hydrochloride)	methylphenidate (Methylphenidate)
methadone (Methadone Hydrochloride)	morphine (Morphine Sulfate)
Methergine (Methylergonovine Maleate)	Brethine (Terbutaline Sulfate)
methimazole (Methimazole)	metolazone (Metolazone)
methotrexate (Methotrexate Sodium)	metolazone (Metolazone)
methotrexate (Methotrexate)	metolazone (Metolazone)
methylphenidate (Methylphenidate Hydrochloride)	methadone (Methadone Hydrochloride)
methylphenidate (Methylphenidate)	methadone (Methadone Hydrochloride)
methylPREDNISolone (Methylprednisolone)	medroxyPROGESTERone (Medroxyprogesterone Acetate)
methylPREDNISolone (Methylprednisolone Acetate)	medroxyPROGESTERone (Medroxyprogesterone Acetate)
methylPREDNISolone (Methylprednisolone Sodium Succinate)	medroxyPROGESTERone (Medroxyprogesterone Acetate)
methylPREDNISolone (Methylprednisolone)	methylTESTOSTERone (Methyltestosterone)
methylPREDNISolone (Methylprednisolone Acetate)	methylTESTOSTERone (Methyltestosterone)
methylPREDNISolone (Methylprednisolone Sodium Succinate)	methylTESTOSTERone (Methyltestosterone)
methylTESTOSTERone (Methyltestosterone)	medroxyPROGESTERone (Medroxyprogesterone Acetate)
methylTESTOSTERone (Methyltestosterone)	methylPREDNISolone (Methylprednisolone)
methylTESTOSTERone (Methyltestosterone)	methylPREDNISolone (Methylprednisolone Acetate)
methylTESTOSTERone (Methyltestosterone)	methylPREDNISolone (Methylprednisolone Sodium Succinate)
metoclopramide (Metoclopramide Hydrochloride)	metolazone (Metolazone)
metolazone (Metolazone)	methimazole (Methimazole)
metolazone (Metolazone)	methotrexate (Methotrexate Sodium)
metolazone (Metolazone)	methotrexate (Methotrexate)
metolazone (Metolazone)	metoclopramide (Metoclopramide Hydrochloride)
metoprolol succinate (Metoprolol Succinate)	metoprolol tartrate (Metoprolol Tartrate)
metoprolol tartrate (Metoprolol Tartrate)	metoprolol succinate (Metoprolol Succinate)
metroNIDAZOLE (Metronidazole)	metFORMIN (Metformin Hydrochloride)
Mevacor (Lovastatin)	Benicar (Olmesartan Medoxomil)
Micronase (Glyburide)	Microzide (Hydrochlorothiazide)
Microzide (Hydrochlorothiazide)	Maxzide (Hydrochlorothiazide/Triamterene)
Microzide (Hydrochlorothiazide)	Micronase (Glyburide)
midodrine (Midodrine Hydrochloride)	Midrin (Isometheptene Mucate/Dichloralphenazone/Acetaminophen)
Midrin (Isometheptene Mucate/Dichloralphenazone/Acetaminophen)	midodrine (Midodrine Hydrochloride)
mifepristone (Mifepristone)	misoprostol (Misoprostol)
Miralax (Polyethylene Glycol 3350)	Mirapex (Pramipexole Dihydrochloride)
Mirapex (Pramipexole Dihydrochloride)	Hiprex ()
Mirapex (Pramipexole Dihydrochloride)	Miralax (Polyethylene Glycol 3350)
misoprostol (Misoprostol)	mifepristone (Mifepristone)
Mivacron ()	Romazicon (Flumazenil)
morphine (Morphine Sulfate)	HYDROmorphone (Hydromorphone Hydrochloride)
morphine (Morphine Sulfate)	methadone (Methadone Hydrochloride)
morphine non-concentrated oral liquid (Morphine Sulfate)	morphine oral liquid concentrate (Morphine Sulfate)
morphine oral liquid concentrate (Morphine Sulfate)	morphine non-concentrated oral liquid (Morphine Sulfate)
morphine sulfate (Morphine Sulfate)	morphine sulfate extended release (Morphine Sulfate)
morphine sulfate extended release (Morphine Sulfate)	morphine sulfate (Morphine Sulfate)
Motrin (Ibuprofen)	Neurontin (Gabapentin)
MS Contin (Morphine Sulfate)	OxyCONTIN (Oxycodone Hydrochloride)
Mucinex (Guaifenesin)	Mucomyst (Acetylcysteine)
Mucomyst (Acetylcysteine)	Mucinex (Guaifenesin)
Myleran (Busulfan)	Alkeran (Melphalan)
Myleran (Busulfan)	Leukeran (Chlorambucil)

N

Drug Name	Looks like
Nafcillin Sodium (Nafcillin Sodium)	Ampicillin (Ampicillin)
naloxone (Naloxone Hydrochloride)	Lanoxin (Digoxin)
Narcan (Naloxone Hydrochloride)	Norcuron (Vecuronium Bromide)
Natrecor (Nesiritide)	Norcuron (Vecuronium Bromide)
Natru-Vent ()	Atrovent (Ipratropium Bromide)
Navane (Thiothixene)	Norvasc (Amlodipine Besylate)
Neo-Synephrine (oxymetazoline) (Oxymetazoline Hydrochloride)	Neo-Synephrine (phenylephrine) (Phenylephrine Hydrochloride)
Neo-Synephrine (phenylephrine) (Phenylephrine Hydrochloride)	Neo-Synephrine (oxymetazoline) (Oxymetazoline Hydrochloride)
Neulasta (Pegfilgrastim)	Lunesta (Eszopiclone)
Neulasta (Pegfilgrastim)	Neumega (Oprelvekin)
Neumega (Oprelvekin)	Neulasta (Pegfilgrastim)
Neumega (Oprelvekin)	Neupogen (Filgrastim)
Neupogen (Filgrastim)	Neumega (Oprelvekin)
Neurontin (Gabapentin)	Motrin (Ibuprofen)
Neurontin (Gabapentin)	Noroxin (Norfloxacin)
Neutra-Phos-K ()	K-Phos Neutral (Potassium Phosphate/Sodium Phosphate, Monobasic And Dibasic)
NexAVAR (Sorafenib Tosylate)	NexIUM (Esomeprazole Magnesium)
NexAVAR (Sorafenib Tosylate)	NexIUM (Esomeprazole Sodium)
NexIUM (Esomeprazole Magnesium)	NexAVAR (Sorafenib Tosylate)
NexIUM (Esomeprazole Sodium)	NexAVAR (Sorafenib Tosylate)
niCARdipine (Nicardipine Hydrochloride)	NIFEdipine (Nifedipine)
niCARdipine (Nicardipine Hydrochloride)	niMODipine (Nimodipine)
NIFEdipine (Nifedipine)	niCARdipine (Nicardipine Hydrochloride)
NIFEdipine (Nifedipine)	niMODipine (Nimodipine)
niMODipine (Nimodipine)	niCARdipine (Nicardipine Hydrochloride)
niMODipine (Nimodipine)	NIFEdipine (Nifedipine)
Norcuron (Vecuronium Bromide)	Narcan (Naloxone Hydrochloride)
Norcuron (Vecuronium Bromide)	Natrecor (Nesiritide)
Normodyne (Labetalol Hydrochloride)	Norpramin (Desipramine Hydrochloride)
Noroxin (Norfloxacin)	Neurontin (Gabapentin)
Norpramin (Desipramine Hydrochloride)	Normodyne (Labetalol Hydrochloride)
Norvasc (Amlodipine Besylate)	Navane (Thiothixene)
NovoLIN (Insulin Human Regular)	HumuLIN (Insulin Human Regular)
NovoLIN (Insulin Human Regular)	NovoLOG (Insulin Aspart, Recombinant)
NovoLIN 70/30 (Insulin Human Isophane (NPH)/Insulin Human Regular)	NovoLOG Mix 70/30 (Insulin Aspart Protamine, Recombinant/Insulin Aspart, Recombinant)
NovoLOG (Insulin Aspart, Recombinant)	humaLOG (Insulin Lispro, Recombinant)
NovoLOG (Insulin Aspart, Recombinant)	NovoLIN (Insulin Human Regular)
NovoLog Flexpen (Insulin Aspart, Recombinant)	NovoLog Mix 70/30 Flexpen (Insulin Aspart Protamine, Recombinant/Insulin Aspart, Recombinant)
NovoLOG Mix 70/30 (Insulin Aspart Protamine, Recombinant/Insulin Aspart, Recombinant)	NovoLIN 70/30 (Insulin Human Isophane (NPH)/Insulin Human Regular)
NovoLog Mix 70/30 Flexpen (Insulin Aspart Protamine, Recombinant/Insulin Aspart, Recombinant)	NovoLog Flexpen (Insulin Aspart, Recombinant)
Novoseven (Coagulation Factor VIIa)	Novoseven RT (Coagulation Factor VIIa)
Novoseven RT (Coagulation Factor VIIa)	Novoseven (Coagulation Factor VIIa)

O

Drug Name	Looks like
Occlusal-HP (Salicylic Acid)	Ocuflox (Ofloxacin)
Ocuflox (Ofloxacin)	Occlusal-HP (Salicylic Acid)
OLANZapine (Olanzapine)	QUEtiapine (Quetiapine Fumarate)
Omacor (Omega-3-Acid Ethyl Esters)	Amicar (Aminocaproic Acid)
omeprazole (Omeprazole)	fomepizole (Fomepizole)
opium tincture (Opium)	camphorated tincture of opium (Opium)
Oracea (Doxycycline)	Orencia (Abatacept)
Orencia (Abatacept)	Oracea (Doxycycline)
Orgaran (Danaparoid Sodium)	argatroban (Argatroban)
Ortho Tri-Cyclen (Ethinyl Estradiol/Norgestimate)	Ortho Tri-Cyclen LO (Ethinyl Estradiol/Norgestimate)
Ortho Tri-Cyclen LO (Ethinyl Estradiol/Norgestimate)	Ortho Tri-Cyclen (Ethinyl Estradiol/Norgestimate)
Os-Cal (Calcium Carbonate)	Asacol (Mesalamine)
oxaprozin (Oxaprozin)	oxcarbazepine (Oxcarbazepine)
OXcarbazepine (Oxcarbazepine)	carBAMazepine (Carbamazepine)
oxcarbazepine (Oxcarbazepine)	oxaprozin (Oxaprozin)
oxyCODONE (Oxycodone Hydrochloride)	OxyCONTIN (Oxycodone Hydrochloride)
oxyCODONE hydrochloride (Oxycodone Hydrochloride)	HYDROcodone (Hydrocodone Bitartrate)
OxyCONTIN (Oxycodone Hydrochloride)	MS Contin (Morphine Sulfate)
OxyCONTIN (Oxycodone Hydrochloride)	oxyCODONE (Oxycodone Hydrochloride)

P

Drug Name	Looks like
paclitaxel (Paclitaxel)	paclitaxel protein-bound particles for injectable suspension (Paclitaxel Protein-Bound)
paclitaxel (Paclitaxel)	PARoxetine (Paroxetine Hydrochloride)
paclitaxel protein-bound particles for injectable suspension (Paclitaxel Protein-Bound)	paclitaxel (Paclitaxel)
Pamelor (Nortriptyline Hydrochloride)	Panlor DC (Caffeine)
Pamelor (Nortriptyline Hydrochloride)	Tambocor (Flecainide Acetate)
Panlor DC (Caffeine)	Pamelor (Nortriptyline Hydrochloride)
PARoxetine (Paroxetine Hydrochloride)	paclitaxel (Paclitaxel)
PARoxetine (Paroxetine Hydrochloride)	piroxicam (Piroxicam)
PARoxetine (Paroxetine Hydrochloride)	pyridoxine (Pyridoxine)
PARoxetine hydrochloride (Paroxetine Hydrochloride)	FLUoxetine hydrochloride (Fluoxetine Hydrochloride)
Patanol (Olopatadine Hydrochloride)	Platinol (Cisplatin)
Pavulon (Pancuronium Bromide)	Peptavlon ()
Paxil (Paroxetine Hydrochloride)	Doxil (Doxorubicin Hydrochloride Liposome)
Paxil (Paroxetine Hydrochloride)	Plavix (Clopidogrel Hydrogen Sulfate)
Paxil (Paroxetine Hydrochloride)	Taxol (Paclitaxel)
PAZOPanib (Pazopanib Hydrochloride)	PONATinib (Ponatinib Hydrochloride)
PEMEtrexed (Pemetrexed)	PRALAtrexate (Pralatrexate)
penicillamine (Penicillamine)	penicillin (Penicillin G Benzathine)
penicillamine (Penicillamine)	penicillin (Penicillin G Procaine)
penicillamine (Penicillamine)	penicillin (Penicillin V Potassium)
penicillamine (Penicillamine)	penicillin (Penicillin G Sodium)
penicillamine (Penicillamine)	penicillin (Penicillin G Potassium)
penicillin (Penicillin G Benzathine)	penicillamine (Penicillamine)
penicillin (Penicillin G Procaine)	penicillamine (Penicillamine)
penicillin (Penicillin V Potassium)	penicillamine (Penicillamine)
penicillin (Penicillin G Sodium)	penicillamine (Penicillamine)
penicillin (Penicillin G Potassium)	penicillamine (Penicillamine)
PENTobarbital (Pentobarbital Sodium)	PHENobarbital sodium (Phenobarbital Sodium)
Peptavlon ()	Pavulon (Pancuronium Bromide)
Percocet (Acetaminophen/Oxycodone Hydrochloride)	Darvocet (Acetaminophen)
Percocet (Acetaminophen/Oxycodone Hydrochloride)	Procet (Hydrocodone Bitartrate/Acetaminophen)
Pexeva (Paroxetine Mesylate)	Lexiva (Fosamprenavir Calcium)
phenobarbital (Phenobarbital Sodium)	phenytoin sodium (Phenytoin)
PHENobarbital sodium (Phenobarbital Sodium)	PENTobarbital (Pentobarbital Sodium)
phenytoin (Phenytoin)	fosphenytoin ()
phenytoin sodium (Phenytoin)	phenobarbital (Phenobarbital Sodium)
Pilocar ()	Dilacor XR (Diltiazem Hydrochloride)
piroxicam (Piroxicam)	PARoxetine (Paroxetine Hydrochloride)
pitavastatin (Pitavastatin Calcium)	pravastatin (Pravastatin Sodium)
Pitocin (Oxytocin)	Pitressin (Vasopressin)
Pitressin (Vasopressin)	Pitocin (Oxytocin)
Plaquenil (Hydroxychloroquine Sulfate)	Provigil (Modafinil)
Platinol (Cisplatin)	Patanol (Olopatadine Hydrochloride)
Plavix (Clopidogrel Hydrogen Sulfate)	Paxil (Paroxetine Hydrochloride)
Plendil (Felodipine)	Isordil (Isosorbide Dinitrate)
pneumococcal 7-valent vaccine ()	pneumococcal polyvalent vaccine (Pneumococcal Vaccine Polyvalent)
pneumococcal polyvalent vaccine (Pneumococcal Vaccine Polyvalent)	pneumococcal 7-valent vaccine ()
Polycitra (Citric Acid/Potassium Citrate)	Bicitra ()
PONATinib (Ponatinib Hydrochloride)	PAZOPanib (Pazopanib Hydrochloride)
PRALAtrexate (Pralatrexate)	PEMEtrexed (Pemetrexed)
Prandin (Repaglinide)	Avandia (Rosiglitazone Maleate)
prasugrel (Prasugrel Hydrochloride)	Pravachol (Pravastatin Sodium)
prasugrel (Prasugrel Hydrochloride)	propranolol (Propranolol Hydrochloride)
Pravachol (Pravastatin Sodium)	prasugrel (Prasugrel Hydrochloride)
pravastatin (Pravastatin Sodium)	pitavastatin (Pitavastatin Calcium)
Precare ()	Precose (Acarbose)
Precose (Acarbose)	Precare ()
prednisoLONE (Prednisolone Acetate)	predniSONE (Prednisone)
prednisoLONE (Prednisolone Sodium Phosphate)	predniSONE (Prednisone)
predniSONE (Prednisone)	prednisoLONE (Prednisolone Acetate)
predniSONE (Prednisone)	prednisoLONE (Prednisolone Sodium Phosphate)
predniSONE (Prednisone)	primidone (Primidone)
Prilosec (Omeprazole)	Pristiq (Desvenlafaxine Succinate)
PriLOSEC (Omeprazole)	PROzac (Fluoxetine Hydrochloride)
primidone (Primidone)	predniSONE (Prednisone)
Priscoline ()	Apresoline (Hydralazine Hydrochloride)
Pristiq (Desvenlafaxine Succinate)	Prilosec (Omeprazole)
probenecid (Probenecid)	Procanbid (Procainamide Hydrochloride)
Procan SR (Procainamide Hydrochloride)	Procanbid (Procainamide Hydrochloride)
Procanbid (Procainamide Hydrochloride)	probenecid (Probenecid)
Procanbid (Procainamide Hydrochloride)	Procan SR (Procainamide Hydrochloride)
Procardia XL (Nifedipine)	Protain XL ()
Procet (Hydrocodone Bitartrate/Acetaminophen)	Percocet (Acetaminophen/Oxycodone Hydrochloride)
Prograf (Tacrolimus)	PROzac (Fluoxetine Hydrochloride)
propranolol (Propranolol Hydrochloride)	prasugrel (Prasugrel Hydrochloride)
propylthiouracil (Propylthiouracil)	Purinethol (Mercaptopurine)
Proscar (Finasteride)	Provera (Medroxyprogesterone Acetate)
Proscar (Finasteride)	PROzac (Fluoxetine Hydrochloride)
Protain XL ()	Procardia XL (Nifedipine)
protamine (Protamine Sulfate)	Protonix (Pantoprazole Sodium)
proton pump inhibitors (Omeprazole)	aripiprazole (Aripiprazole)
proton pump inhibitors (Lansoprazole)	aripiprazole (Aripiprazole)
proton pump inhibitors (Pantoprazole Sodium)	aripiprazole (Aripiprazole)
proton pump inhibitors (Rabeprazole Sodium)	aripiprazole (Aripiprazole)
proton pump inhibitors (Esomeprazole Magnesium)	aripiprazole (Aripiprazole)
proton pump inhibitors (Esomeprazole Sodium)	aripiprazole (Aripiprazole)
Protonix (Pantoprazole Sodium)	Lotronex (Alosetron Hydrochloride)
Protonix (Pantoprazole Sodium)	protamine (Protamine Sulfate)
Provera (Medroxyprogesterone Acetate)	Proscar (Finasteride)
Provera (Medroxyprogesterone Acetate)	Prozac ()
Provigil (Modafinil)	Plaquenil (Hydroxychloroquine Sulfate)
PROzac (Fluoxetine Hydrochloride)	Losec (Omeprazole)
PROzac (Fluoxetine Hydrochloride)	PriLOSEC (Omeprazole)
PROzac (Fluoxetine Hydrochloride)	Prograf (Tacrolimus)
PROzac (Fluoxetine Hydrochloride)	Proscar (Finasteride)
Prozac ()	Provera (Medroxyprogesterone Acetate)
Purinethol (Mercaptopurine)	propylthiouracil (Propylthiouracil)
Pyridium ()	pyridoxine (Pyridoxine)
pyridoxine (Pyridoxine)	PARoxetine (Paroxetine Hydrochloride)
pyridoxine (Pyridoxine)	Pyridium ()

Q

Drug Name	Looks like
QUEtiapine (Quetiapine Fumarate)	OLANZapine (Olanzapine)
quiNIDine (Quinidine Gluconate)	quiNINE ()
quiNIDine (Quinidine Sulfate)	quiNINE ()
quiNINE ()	quiNIDine (Quinidine Gluconate)
quiNINE ()	quiNIDine (Quinidine Sulfate)

R

Drug Name	Looks like
RABEprazole (Rabeprazole Sodium)	ARIPiprazole (Aripiprazole)
Rapaflo (Silodosin)	Rapamune (Sirolimus)
Rapamune (Sirolimus)	Rapaflo (Silodosin)
Razadyne (Galantamine Hydrobromide)	Rozerem (Ramelteon)
Recombivax HB (Hepatitis B Vaccine Recombinant)	Comvax (Haemophilus B Conjugate and Hepatitis B Vaccine)
Regranex (Becaplermin)	Granulex (Balsam Peru/Castor Oil/Trypsin)
Reminyl (Galantamine Hydrobromide)	Amaryl (Glimepiride)
Reminyl (Galantamine Hydrobromide)	Robinul (Glycopyrrolate)
Renagel (Sevelamer Hydrochloride)	Renvela (Sevelamer Carbonate)
Renvela (Sevelamer Carbonate)	Renagel (Sevelamer Hydrochloride)
Reprexain (Hydrocodone Bitartrate/Ibuprofen)	ZyPREXA (Olanzapine)
Restoril (Temazepam)	risperDAL (Risperidone)
Retrovir (Zidovudine)	ritonavir (Ritonavir)
Ribavirin (Ribavirin)	Riboflavin ()
Riboflavin ()	Ribavirin (Ribavirin)
Rifadin (Rifampin)	Rifater (Rifampin/Isoniazid/Pyrazinamide)
Rifamate (Isoniazid/Rifampin)	rifampin (Rifampin)
rifampin (Rifampin)	Rifamate (Isoniazid/Rifampin)
rifampin (Rifampin)	rifaximin (Rifaximin)
Rifater (Rifampin/Isoniazid/Pyrazinamide)	Rifadin (Rifampin)
rifaximin (Rifaximin)	rifampin (Rifampin)
risperDAL (Risperidone)	Restoril (Temazepam)
risperiDONE (Risperidone)	rOPINIRole hydrochloride (Ropinirole Hydrochloride)
Ritalin (Methylphenidate Hydrochloride)	ritodrine ()
Ritalin LA (Methylphenidate Hydrochloride)	Ritalin SR (Methylphenidate Hydrochloride)
Ritalin SR (Methylphenidate Hydrochloride)	Ritalin LA (Methylphenidate Hydrochloride)
ritodrine ()	Ritalin (Methylphenidate Hydrochloride)
ritonavir (Ritonavir)	Retrovir (Zidovudine)
rituximab (Rituximab)	cetuximab (Cetuximab)
riTUXimab (Rituximab)	inFLIXimab (Infliximab)
Robinul (Glycopyrrolate)	Reminyl (Galantamine Hydrobromide)
Romazicon (Flumazenil)	Mivacron ()
romiDEPsin (Romidepsin)	romiPLOStim (Romiplostim)
romiPLOStim (Romiplostim)	romiDEPsin (Romidepsin)
rOPINIRole hydrochloride (Ropinirole Hydrochloride)	risperiDONE (Risperidone)
Roxanol (Morphine Sulfate)	Roxicet (Acetaminophen/Oxycodone Hydrochloride)
Roxanol (Morphine Sulfate)	Roxicodone Intensol (Oxycodone Hydrochloride)
Roxicet (Acetaminophen/Oxycodone Hydrochloride)	Roxanol (Morphine Sulfate)
Roxicodone Intensol (Oxycodone Hydrochloride)	Roxanol (Morphine Sulfate)
Rozerem (Ramelteon)	Razadyne (Galantamine Hydrobromide)

S

Drug Name	Looks like
Salagen ()	selegiline (Selegiline Hydrochloride)
Salagen ()	selegiline (Selegiline)
SandIMMUNE (Cyclosporine)	SandoSTATIN (Octreotide Acetate)
SandIMMUNE (Cyclosporine)	SandoSTATIN LAR Depot (Octreotide Acetate)
SandoSTATIN (Octreotide Acetate)	SandIMMUNE (Cyclosporine)
SandoSTATIN LAR Depot (Octreotide Acetate)	SandIMMUNE (Cyclosporine)
saquinavir (Saquinavir Mesylate)	saquinavir (free base) ()
saquinavir (Saquinavir Mesylate)	SINEquan (Doxepin Hydrochloride)
saquinavir (free base) ()	saquinavir (Saquinavir Mesylate)
Sarafem (Fluoxetine Hydrochloride)	Serophene (Clomiphene Citrate)
selegiline (Selegiline Hydrochloride)	Salagen ()
selegiline (Selegiline)	Salagen ()
Serophene (Clomiphene Citrate)	Sarafem (Fluoxetine Hydrochloride)
Seroquel (Quetiapine Fumarate)	Seroquel XR (Quetiapine Fumarate)
SEROquel (Quetiapine Fumarate)	Serzone (Nefazodone Hydrochloride)
SEROquel (Quetiapine Fumarate)	SINEquan (Doxepin Hydrochloride)
Seroquel XR (Quetiapine Fumarate)	Seroquel (Quetiapine Fumarate)
sertraline (Sertraline Hydrochloride)	cetirizine (Cetirizine Hydrochloride)
sertraline (Sertraline Hydrochloride)	Soriatane (Acitretin)
Serzone (Nefazodone Hydrochloride)	SEROquel (Quetiapine Fumarate)
Simcor (Niacin/Simvastatin)	Symbicort (Budesonide/Formoterol)
Sinemet (Carbidopa/Levodopa)	Janumet (Sitagliptin Phosphate/Metformin Hydrochloride)
SINEquan (Doxepin Hydrochloride)	saquinavir (Saquinavir Mesylate)
SINEquan (Doxepin Hydrochloride)	SEROquel (Quetiapine Fumarate)
SINEquan (Doxepin Hydrochloride)	Singulair (Montelukast Sodium)
SINEquan (Doxepin Hydrochloride)	Zonegran (Zonisamide)
Singulair (Montelukast Sodium)	SINEquan (Doxepin Hydrochloride)
sitaGLIPtin (Sitagliptin Phosphate)	SUMAtriptan (Sumatriptan Succinate)
sitaGLIPtin (Sitagliptin Phosphate)	SUMAtriptan (Sumatriptan)
sitaGLIPtin (Sitagliptin Phosphate)	ZOLMitriptan (Zolmitriptan)
Solu-CORTEF (Hydrocortisone Sodium Succinate)	Solu-MEDROL (Methylprednisolone Sodium Succinate)
Solu-MEDROL (Methylprednisolone Sodium Succinate)	Depo-Medrol (Methylprednisolone Acetate)
Solu-MEDROL (Methylprednisolone Sodium Succinate)	Solu-CORTEF (Hydrocortisone Sodium Succinate)
Sonata (Zaleplon)	Soriatane (Acitretin)
SORAfenib (Sorafenib Tosylate)	SUNItinib (Sunitinib Malate)
Soriatane (Acitretin)	Loxitane (Loxapine Succinate)
Soriatane (Acitretin)	Loxitane (Loxapine)
Soriatane (Acitretin)	sertraline (Sertraline Hydrochloride)
Soriatane (Acitretin)	Sonata (Zaleplon)
sotalol (Sotalol Hydrochloride)	Sudafed (Pseudoephedrine Hydrochloride)
Spiriva (Tiotropium Bromide)	Inspra (Eplerenone)
Stribild (Elvitegravir/Cobicistat/Emtricitabine/Tenofovir)	Genvoya (Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide)
Suboxone (Buprenorphine/Naloxone)	Gabitril ()
Sudafed (Pseudoephedrine Hydrochloride)	sotalol (Sotalol Hydrochloride)
Sudafed (Pseudoephedrine Hydrochloride)	Sudafed PE ()
Sudafed PE ()	Sudafed (Pseudoephedrine Hydrochloride)
SUFentanil (Sufentanil Citrate)	fentaNYL (Fentanyl)
SUFentanil (Sufentanil Citrate)	fentaNYL (Fentanyl Citrate)
sulfADIAZINE (Sulfadiazine)	sulfaSALAzine (Sulfasalazine)
sulfADIAZINE (Sulfadiazine)	sulfiSOXAZOLE ()
sulfaSALAzine (Sulfasalazine)	sulfADIAZINE (Sulfadiazine)
sulfiSOXAZOLE ()	sulfADIAZINE (Sulfadiazine)
SUMAtriptan (Sumatriptan Succinate)	sitaGLIPtin (Sitagliptin Phosphate)
SUMAtriptan (Sumatriptan)	sitaGLIPtin (Sitagliptin Phosphate)
SUMAtriptan (Sumatriptan Succinate)	ZOLMitriptan (Zolmitriptan)
SUMAtriptan (Sumatriptan)	ZOLMitriptan (Zolmitriptan)
SUNItinib (Sunitinib Malate)	SORAfenib (Sorafenib Tosylate)
Symbicort (Budesonide/Formoterol)	Simcor (Niacin/Simvastatin)
Symbyax (Olanzapine/Fluoxetine Hydrochloride)	Cymbalta (Duloxetine Hydrochloride)

T

Drug Name	Looks like
Tambocor (Flecainide Acetate)	Pamelor (Nortriptyline Hydrochloride)
Taxol (Paclitaxel)	Paxil (Paroxetine Hydrochloride)
Taxol (Paclitaxel)	Taxotere (Docetaxel)
Taxotere (Docetaxel)	Taxol (Paclitaxel)
TEGretol (Carbamazepine)	TEGretol XR (Carbamazepine)
TEGretol (Carbamazepine)	Tequin (Gatifloxacin)
TEGretol (Carbamazepine)	TRENtal (Pentoxifylline)
TEGretol XR (Carbamazepine)	TEGretol (Carbamazepine)
Tequin (Gatifloxacin)	TEGretol (Carbamazepine)
Tequin (Gatifloxacin)	Ticlid (Ticlopidine Hydrochloride)
Testoderm (Testosterone)	Testoderm TTS (Testosterone)
Testoderm (Testosterone)	Testoderm with Adhesive (Testosterone)
Testoderm TTS (Testosterone)	Testoderm (Testosterone)
Testoderm TTS (Testosterone)	Testoderm with Adhesive (Testosterone)
Testoderm with Adhesive (Testosterone)	Testoderm (Testosterone)
Testoderm with Adhesive (Testosterone)	Testoderm TTS (Testosterone)
tetanus diphtheria toxoid (Td) (Tetanus and Diphtheria Toxoids, Adsorbed)	tuberculin purified protein derivative (PPD) (Tuberculin)
Thalomid (Thalidomide)	thiamine (Thiamine)
thiamine (Thiamine)	Thalomid (Thalidomide)
tiaGABine (Tiagabine Hydrochloride)	tiZANidine (Tizanidine Hydrochloride)
Tiazac (Diltiazem Hydrochloride)	Ziac (Bisoprolol Fumarate/Hydrochlorothiazide)
Ticlid (Ticlopidine Hydrochloride)	Tequin (Gatifloxacin)
tiZANidine (Tizanidine Hydrochloride)	tiaGABine (Tiagabine Hydrochloride)
TNKase (Tenecteplase)	Activase (Alteplase, Recombinant)
TNKase (Tenecteplase)	t-PA (Tenecteplase)
Tobradex (Tobramycin/Dexamethasone)	Tobrex (Tobramycin)
Tobrex (Tobramycin)	Tobradex (Tobramycin/Dexamethasone)
TOLAZamide (Tolazamide)	TOLBUTamide (Tolbutamide)
TOLBUTamide (Tolbutamide)	TOLAZamide (Tolazamide)
Topamax (Topiramate)	Toprol XL (Metoprolol Succinate)
Toprol XL (Metoprolol Succinate)	Topamax (Topiramate)
Toradol (Ketorolac Tromethamine)	Foradil (Formoterol Fumarate)
t-PA (Tenecteplase)	TNKase (Tenecteplase)
Tracleer (Bosentan)	Tricor (Fenofibrate)
Tracleer (Bosentan)	Tricor (Fenofibrate, Micronized)
traMADol hydrochloride (Tramadol Hydrochloride)	traZODone hydrochloride (Trazodone Hydrochloride)
traZODone hydrochloride (Trazodone Hydrochloride)	traMADol hydrochloride (Tramadol Hydrochloride)
TRENtal (Pentoxifylline)	TEGretol (Carbamazepine)
tretinoin (Isotretinoin)	ISOtretinoin (Tretinoin)
Tricor (Fenofibrate)	Tracleer (Bosentan)
Tricor (Fenofibrate, Micronized)	Tracleer (Bosentan)
Trileptal (Oxcarbazepine)	Trilipix (Fenofibric Acid)
Trilipix (Fenofibric Acid)	Trileptal (Oxcarbazepine)
Tromethamine (Tromethamine)	Trophamine ()
Trophamine ()	Tromethamine (Tromethamine)
tuberculin purified protein derivative (PPD) (Tuberculin)	influenza virus vaccine (Influenza Virus Vaccine (Subvirion))
tuberculin purified protein derivative (PPD) (Tuberculin)	influenza virus vaccine (Influenza Virus Vaccine, Live)
tuberculin purified protein derivative (PPD) (Tuberculin)	tetanus diphtheria toxoid (Td) (Tetanus and Diphtheria Toxoids, Adsorbed)
Tylenol (Acetaminophen)	Tylenol PM (Acetaminophen)
Tylenol PM (Acetaminophen)	Tylenol (Acetaminophen)

U

Drug Name	Looks like
Ultracet (Tramadol Hydrochloride/Acetaminophen)	Duricef (Cefadroxil)

V

Drug Name	Looks like
valacyclovir (Valacyclovir Hydrochloride)	valganciclovir (Valganciclovir Hydrochloride)
Valcyte (Valganciclovir Hydrochloride)	Valtrex (Valacyclovir Hydrochloride)
valganciclovir (Valganciclovir Hydrochloride)	valacyclovir (Valacyclovir Hydrochloride)
Valtrex (Valacyclovir Hydrochloride)	Keflex (Cephalexin)
Valtrex (Valacyclovir Hydrochloride)	Valcyte (Valganciclovir Hydrochloride)
Varivax (Varicella Virus Vaccine)	VZIG (varicella-zoster immuneglobulin) (Varicella-Zoster Immune Globulin)
Venofer (Iron Sucrose)	Vfend (Voriconazole)
Vesanoid (Tretinoin)	Vesicare (Solifenacin Succinate)
Vesicare (Solifenacin Succinate)	Vesanoid (Tretinoin)
Vexol (Acetic Acid)	Vosol (Rimexolone)
Vfend (Voriconazole)	Venofer (Iron Sucrose)
Viagra (Sildenafil Citrate)	Allegra (Fexofenadine Hydrochloride)
Videx (Didanosine)	Bidex (Guaifenesin)
vinBLAStine (Vinblastine Sulfate)	vinCRIStine (Vincristine Sulfate)
vinCRIStine (Vincristine Sulfate)	vinBLAStine (Vinblastine Sulfate)
Vioxx ()	Zyvox (Linezolid)
Viracept (Nelfinavir Mesylate)	Viramune (Nevirapine)
Viramune (Nevirapine)	Viracept (Nelfinavir Mesylate)
Vosol (Rimexolone)	Vexol (Acetic Acid)
VZIG (varicella-zoster immuneglobulin) (Varicella-Zoster Immune Globulin)	Varivax (Varicella Virus Vaccine)

W

Drug Name	Looks like
Wellbutrin SR (Bupropion Hydrochloride)	Wellbutrin XL (Bupropion Hydrochloride)
Wellbutrin XL (Bupropion Hydrochloride)	Wellbutrin SR (Bupropion Hydrochloride)

X

Drug Name	Looks like
Xanax (Alprazolam)	Fanapt (Iloperidone)
Xanax (Alprazolam)	Zantac (Ranitidine Hydrochloride)
Xeloda (Capecitabine)	Xenical (Orlistat)
Xenical (Orlistat)	Xeloda (Capecitabine)
Xiaflex (Collagenase, Clostridium histolyticum)	Zanaflex (Tizanidine Hydrochloride)

Y

Drug Name	Looks like
Yasmin (Drospirenone/Ethinyl Estradiol)	Yaz (Drospirenone/Ethinyl Estradiol)
Yaz (Drospirenone/Ethinyl Estradiol)	Yasmin (Drospirenone/Ethinyl Estradiol)

Z

Drug Name	Looks like
Zanaflex (Tizanidine Hydrochloride)	Xiaflex (Collagenase, Clostridium histolyticum)
Zantac (Ranitidine Hydrochloride)	Fanapt (Iloperidone)
Zantac (Ranitidine Hydrochloride)	Xanax (Alprazolam)
Zantac (Ranitidine Hydrochloride)	ZyrTEC (Cetirizine Hydrochloride)
Zavesca (Miglustat)	Zavesca ()
Zebeta (Bisoprolol Fumarate)	Diabeta (Glyburide)
Zebeta (Bisoprolol Fumarate)	Zetia (Ezetimibe)
Zegerid (Omeprazole/Sodium Bicarbonate)	Zestril (Lisinopril)
Zelapar (Zydis formulation) (Selegiline Hydrochloride)	ZyPREXA Zydis (Olanzapine)
Zestril (Lisinopril)	Zegerid (Omeprazole/Sodium Bicarbonate)
Zestril (Lisinopril)	Zetia (Ezetimibe)
Zestril (Lisinopril)	ZyPREXA (Olanzapine)
Zetia (Ezetimibe)	Zebeta (Bisoprolol Fumarate)
Zetia (Ezetimibe)	Zestril (Lisinopril)
Ziac (Bisoprolol Fumarate/Hydrochlorothiazide)	Tiazac (Diltiazem Hydrochloride)
Zocor (Simvastatin)	Cozaar (Losartan Potassium)
Zocor (Simvastatin)	ZyrTEC (Cetirizine Hydrochloride)
ZOLMitriptan (Zolmitriptan)	sitaGLIPtin (Sitagliptin Phosphate)
ZOLMitriptan (Zolmitriptan)	SUMAtriptan (Sumatriptan Succinate)
ZOLMitriptan (Zolmitriptan)	SUMAtriptan (Sumatriptan)
zolmitriptan (Zolmitriptan)	zolpidem (Zolpidem Tartrate)
zolpidem (Zolpidem Tartrate)	zolmitriptan (Zolmitriptan)
Zonegran (Zonisamide)	SINEquan (Doxepin Hydrochloride)
Zostrix (Capsaicin)	Zovirax (Acyclovir)
Zovirax (Acyclovir)	Doribax (Doripenem)
Zovirax (Acyclovir)	Zostrix (Capsaicin)
Zovirax (Acyclovir)	Zyvox (Linezolid)
Zyban (Bupropion Hydrochloride)	Diovan (Valsartan)
ZyPREXA (Olanzapine)	CeleXA (Citalopram Hydrobromide)
ZyPREXA (Olanzapine)	Reprexain (Hydrocodone Bitartrate/Ibuprofen)
ZyPREXA (Olanzapine)	Zestril (Lisinopril)
Zyprexa (Olanzapine)	Zyprexa Relprevv (Olanzapine Pamoate)
ZyPREXA (Olanzapine)	ZyrTEC (Cetirizine Hydrochloride)
Zyprexa Relprevv (Olanzapine Pamoate)	Zyprexa (Olanzapine)
ZyPREXA Zydis (Olanzapine)	Zelapar (Zydis formulation) (Selegiline Hydrochloride)
ZyrTEC (Cetirizine Hydrochloride)	Lipitor (Atorvastatin Calcium)
ZyrTEC (Cetirizine Hydrochloride)	Zantac (Ranitidine Hydrochloride)
ZyrTEC (Cetirizine Hydrochloride)	Zocor (Simvastatin)
ZyrTEC (Cetirizine Hydrochloride)	ZyPREXA (Olanzapine)
ZyrTEC (Cetirizine Hydrochloride)	ZyrTEC Itchy Eye Drops (Ketotifen Fumarate)
ZyrTEC (Cetirizine Hydrochloride)	ZyrTEC-D (Cetirizine Hydrochloride/Pseudoephedrine Hydrochloride)
ZyrTEC Itchy Eye Drops (Ketotifen Fumarate)	ZyrTEC (Cetirizine Hydrochloride)
ZyrTEC-D (Cetirizine Hydrochloride/Pseudoephedrine Hydrochloride)	ZyrTEC (Cetirizine Hydrochloride)
Zyvox (Linezolid)	Vioxx ()
Zyvox (Linezolid)	Zovirax (Acyclovir)

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