The drug names below can easily be confused, either verbally or in writing, because they either sound alike or have similar spellings. Generic names of these drugs appear in regular type; trade names are capitalized and in boldface.
| Accupril, Accutane |
Lamictal, Lamisil |
| Accutane, Anturane |
lamivudine, lamotrigine |
| acetazolamide, acetohexamide |
Lanoxin, Lasix, Lonox |
| acetylcholine, acetylcysteine |
Levatol, Lipitor |
| Aciphex, Aricept |
Levbid, Lithobid |
| Adderall, Inderal |
Levitra, Raptiva |
| albuterol, atenolol |
Librax, Librium |
| Aldactazide, Aldactone |
Loniten, Lotensin, lovastatin |
| Aldomet, Aldoril |
Lorabid, Slo-bid |
| Aldoril, Elavil |
losartan, valsartan |
| alfentanil, fentanyl, Sufenta, sufentanil |
Mandol, nadolol |
| Allegra, Viagra |
Maxidex, Maxzide |
alprazolam, diazepam, lorazepam,
midazolam |
Mazicon, Mevacor, Mivacron
|
| Altace, alteplase |
mebendazole, methimazole
|
| Alupent, Atrovent |
meclizine, memantine |
| amantadine, rimantadine |
melphalan, Mephyton |
| Ambien, Amen |
meperidine, meprobamate |
| Amicar, Amikin |
Mesantoin, Mestinon |
| amiloride, amiodarone, amlodipine |
metaproterenol, metoprolol |
| amitriptyline, nortriptyline |
methicillin, mezlocillin |
| amoxicillin, Augmentin |
methotrexate, metolazone |
| Anafranil, enalapril |
metoprolol, misoprostol |
| Apresazide, Apresoline |
minoxidil, Monopril |
| Asacol, Os-Cal, Oxytrol |
mithramycin, mitomycin |
| Atarax, Ativan |
naloxone, naltrexone |
| atenolol, timolol |
Naprelan, Naprosyn |
| Avinza, Invanz |
Navane, Nubain |
| azithromycin, erythromycin |
nelfinavir, nevirapine |
| baclofen, Bactroban |
Neurontin, Noroxin |
| Benadryl, Bentyl, Benylin, Betalin |
niacinamide, nicardipine |
| bepridil, Prepidil |
nicardipine, nifedipine, nimodipine |
| Betagan, BetaGen |
Norpace, Norpramin |
| Bumex, Buprenex |
Ocufen, Ocuflox |
| bupivacaine, ropivacaine |
olanzapine, olsalazine |
| bupropion, buspirone |
Orinase, Ornade |
| Calan, Colace |
oxaprozin, oxazepam |
| calcifediol, calcitriol |
oxycodone, OxyContin |
| Capitrol, captopril |
paclitaxel, paroxetine |
| Cardene, Cardizem |
Panadol, pindolol, Plendil |
| Cardene, codeine |
pancuronium, pipecuronium |
| cefazolin, cefprozil |
Parlodel, pindolol |
| cefotaxime, ceftizoxime |
paroxetine, pralidoxime, pyridoxine |
| cefuroximine, deferoxamine |
Pelamine, pemoline |
| Cefzil, Kefzol |
pentobarbital, phenobarbital |
| Celebrex, Celexa |
pentosan, pentostatin |
| Celebrex, Cerebyx |
Percocet , Percodan, Procet |
chlorpromazine, chlorpropamide,
promethazine |
Phenaphen, Phenergan |
| Ciloxan, Cytoxan |
phenelzine, Phenylzin |
| ciprofloxacin, ofloxacin |
phentermine, phentolamine |
| Clinoril, Clozaril |
pioglitazone, rosiglitazone |
| clofazimine, clonidine, clozapine |
Pitocin, Pitressin |
| clomiphene, clomipramine |
Pravachol, Prevacid |
| clonazepam, clorazepate |
Pravachol, propranolol |
| clonidine, quinidine |
prednisolone, prednisone, primidone |
| clotrimazole, co-trimoxazole |
Premarin, Primaxin |
| codeine, Lodine |
Prilosec, Prinivil, Proventil |
| Coreg, Zomig |
Prilosec, Prozac |
| Cozaar, Zocor |
ProAmatine, protamine |
| cyclobenzaprine, cyproheptadine |
probenecid, Procanbid |
| cycloserine, cyclosporine |
promazine, promethazine |
| dacarbazine, procarbazine |
Proscar, Provera, Prozac |
| dactinomycin, daunorubicin |
protamine, Protopam, Protropin |
| danazol, Dantrium |
Quarzan, Questran |
| dapsone, Diprosone |
quinidine, quinine |
| Darvon, Diovan |
ranitidine, rimantadine |
| daunorubicin, idarubicin |
Relpax, Revex, Revia |
| Decadron, Percodan |
Reminyl, Robinul |
| desipramine, imipramine |
reserpine, Risperdal |
| Desogen, desonide |
Restoril, Vistaril |
| desoximetasone, dexamethasone |
Retrovir, ritonavir |
| Desoxyn, digitoxin, digoxin |
ribavirin, riboflavin |
| diazepam, Ditropan |
rifabutin, rifampin |
| diazoxide, Dyazide |
Rifadin, Rifamate, Rifater |
| dimenhydrinate, diphenhydramine |
Rifadin, Ritalin, ritodrine |
| Diprivan, Ditropan |
Roxanol, Roxicet |
| dipyridamole, disopyramide |
Salbutamol, salmeterol |
| dobutamine, dopamine |
saquinavir, Sinequan |
doxapram, doxazosin, doxepin,
doxycycline |
selegiline, Stelazine
|
| Doxil, Paxil, Plavix |
Septa, Septra |
| dronabinol, droperidol |
Serentil, Serevent |
| dyclonine, dicyclomine |
Seroquel, Serzone |
| Dynacin, DynaCirc |
Solu-Cortef, Solu-Medrol |
| Echogen, Epogen |
somatropin, sumatriptan |
| Elavil, Equanil, Mellaril |
Spiriva, Stalevo |
| Eldepryl, enalapril |
Sufenta, Survanta |
| Elmiron, Imuran |
sulfadiazine, sulfasalazine, sulfisoxazole |
| eloxatin, Exelon |
sumatriptan, zolmitriptan |
| enalapril, ramipril |
Tambocor, tamoxifen |
| Entex, Tenex, Xanax |
tegaserod, Tegretol, Toradol |
| ephedrine, epinephrine |
Tequin, Ticlid |
| esmolol, Osmitrol |
terbinafine, terbutaline, terfenadine |
| Estraderm, Estratab, Estratest |
terbutaline, tolbutamide |
| Estraderm, Testoderm |
terconazole, tioconazole |
| ethosuximide, methsuximide |
testolactone, testosterone |
| etidronate, etretinate |
thiamine, Thorazine |
| Eurax, Urex |
tiagabine, tizanidine |
| Evista, E-vista |
Ticar, Tigan |
| Femara, FemHRT |
Timoptic, Viroptic |
| fenoprofen, flurbiprofen |
Tobradex, Tobrex |
| Fioricet, Fiorinal |
tolazamide, tolbutamide |
| Flaxedil, Flexeril |
tolnaftate, Tornalate |
| Flomax, Fosamax |
Trandate, Tridate |
| flunisolide, fluocinonide |
Trendar, Trental |
fluoxetine, fluvastatin, fluvoxamine, paroxetine |
tretinoin, trientine
|
| flurazepam, temazepam |
triamcinolone, Triaminicin, Triaminicol |
| folic acid, folinic acid |
triaminic, Triaminicin |
| Foradil, Toradol |
triamterene, trimipramine |
| fosinopril, lisinopril, Risperdal |
trifluoperazine, triflupromazine |
| fosphenytoin, phenytoin |
Ultracef, Ultracet |
| furosemide, torsemide |
Urised, Urispas |
| glimepiride, glipizide, glyburide |
valacyclovir, valganciclovir |
| Granulex, Regranex |
Vancenase, Vanceril |
| guaifenesin, guanfacine |
Vanceril, Vansil |
| Haldol, Stadol |
VePesid, Versed |
| heparin, Hepsera, Hespan |
verapamil, Verelan |
| Hycodan, Vicodin |
Verelan, Virilon |
| hydralazine, hydroxyzine |
vinblastine, vincristine, vindesine,
vinorelbine |
| hydromorphone, morphine |
Wellbutrin, Wellcovorin, Wellferon |
| Hyperstat, Nitrostat |
Xanax, Zantac |
| imipenem, Omnipen |
Zantac, Zyrtec |
| imipramine, Norpramin |
Zestril, Zostrix |
| Inderal, Inderide, Isordil |
Zocor, Zoloft |
| Intropin, Isoptin |
Zofran, Zosyn |
| Lamasil, Lomotil |
Zymar, Zyprexa, Zyrtec |
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