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Chinese Patent Office
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Federal Trade Commission
Baxter
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Single Source Generic Drugs: Drugs With No Patents and No Competition

A daily-updated list of drugs for which there are no patents, no regulatory protections, and no competitors

Applicant Tradename Generic Name Dosage NDA
Bausch And Lomb
ACETIC ACID 2% IN AQUEOUS ALUMINUM ACETATE
acetic acid, glacial; aluminum acetate
SOLUTION/DROPS;OTIC040063
Mission Pharma
LITHOSTAT
acetohydroxamic acid
TABLET;ORAL018749
Bausch And Lomb
MIOCHOL-E
acetylcholine chloride
FOR SOLUTION;OPHTHALMIC020213
Auxilium Pharms Llc
SEMPREX-D
acrivastine; pseudoephedrine hydrochloride
CAPSULE;ORAL019806
Impax Labs Inc
ALBENZA
albendazole
TABLET;ORAL020666
Eisai Inc
HEXALEN
altretamine
CAPSULE;ORAL019926
B Braun
PROCALAMINE
amino acids; calcium acetate; glycerin; magnesium acetate; phosphoric acid; potassium chloride; sodium acetate; sodium chloride
INJECTABLE;INJECTION018582
B Braun
FREAMINE III 8.5% W/ ELECTROLYTES
amino acids; magnesium acetate; phosphoric acid; potassium acetate; potassium chloride; sodium acetate
INJECTABLE;INJECTION016822
Icu Medical Inc
AMINOSYN 3.5% M
amino acids; magnesium acetate; phosphoric acid; potassium acetate; sodium chloride
INJECTABLE;INJECTION017789
B Braun
FREAMINE III 3% W/ ELECTROLYTES
amino acids; magnesium acetate; phosphoric acid; potassium chloride; sodium acetate; sodium chloride
INJECTABLE;INJECTION016822
Jacobus
PASER
aminosalicylic acid
GRANULE, DELAYED RELEASE;ORAL074346
Hospira
AMMONIUM CHLORIDE IN PLASTIC CONTAINER
ammonium chloride
INJECTABLE;INJECTION088366
Gastroentero
OMEPRAZOLE AND CLARITHROMYCIN AND AMOXICILLIN
amoxicillin; clarithromycin; omeprazole
CAPSULE, TABLET, CAPSULE, DELAYED RELEASE;ORAL050824
Us Worldmeds
APOKYN
apomorphine hydrochloride
INJECTABLE;SUBCUTANEOUS021264
Pharmacia And Upjohn
R-GENE 10
arginine hydrochloride
INJECTABLE;INJECTION016931
Novartis
COARTEM
artemether; lumefantrine
TABLET;ORAL022268
Hospira
M.V.I. PEDIATRIC
ascorbic acid; biotin; cyanocobalamin; dexpanthenol; ergocalciferol; folic acid; niacinamide; phytonadione; pyridoxine hydrochloride; riboflavin 5'-phosphate sodium; thiamine hydrochloride; vitamin a; vitamin e
FOR SOLUTION;IV (INFUSION)018920
Sun Pharm Inds
SYNALGOS-DC
aspirin; caffeine; dihydrocodeine bitartrate
CAPSULE;ORAL011483
Stevens J
METHOCARBAMOL AND ASPIRIN
aspirin; methocarbamol
TABLET;ORAL081145
Sebela Ireland Ltd
MOTOFEN
atropine sulfate; difenoxin hydrochloride
TABLET;ORAL017744
Mylan Institutional
ENLON-PLUS
atropine sulfate; edrophonium chloride
INJECTABLE;INJECTION019678
Meridian Medcl
DUODOTE
atropine; pralidoxime chloride
INJECTABLE;INTRAMUSCULAR021983
Sebela Ireland Ltd
RIDAURA
auranofin
CAPSULE;ORAL018689
West-ward Pharms Int
AZATHIOPRINE SODIUM
azathioprine sodium
INJECTABLE;INJECTION074419
Perrigo Co Tennessee
BACITRACIN-NEOMYCIN-POLYMYXIN W/ HYDROCORTISONE ACETATE
bacitracin; hydrocortisone acetate; neomycin sulfate; polymyxin b sulfate
OINTMENT;OPHTHALMIC062166
Glaxosmithkline
BECONASE AQ
beclomethasone dipropionate monohydrate
SPRAY, METERED;NASAL019389
Stand Homeopath
IVY BLOCK
bentoquatam
LOTION;TOPICAL020532
Allerquest
PRE-PEN
benzylpenicilloyl polylysine
INJECTABLE;INJECTION050114
Abbvie
SURVANTA
beractant
SUSPENSION;INTRATRACHEAL020032
Orphan Europe
CYSTADANE
betaine hydrochloride
FOR SOLUTION;ORAL020576
Novel Labs Inc
PEG-3350, SODIUM CHLORIDE, SODIUM BICARBONATE, POTASSIUM CHLORIDE AND BISACODYL
bisacodyl; polyethylene glycol 3350; potassium chloride; sodium bicarbonate; sodium chloride
FOR SOLUTION, TABLET, DELAYED RELEASE;ORAL202217
Novartis Pharms Corp
AZOPT
brinzolamide
SUSPENSION/DROPS;OPHTHALMIC020816
Mylan Speciality Lp
BUTISOL SODIUM
butabarbital sodium
TABLET;ORAL000793
Perrigo Israel
GYNAZOLE-1
butoconazole nitrate
CREAM;VAGINAL200923
Lukare Medical Llc
ELLIOTTS B SOLUTION
calcium chloride; dextrose; magnesium sulfate; potassium chloride; sodium bicarbonate; sodium chloride; sodium phosphate, dibasic, heptahydrate
INJECTABLE;INTRATHECAL020577
B Braun
DEXTROSE 5% IN RINGER'S IN PLASTIC CONTAINER
calcium chloride; dextrose; potassium chloride; sodium chloride
INJECTABLE;INJECTION020000
Hospira
TPN ELECTROLYTES IN PLASTIC CONTAINER
calcium chloride; magnesium chloride; potassium chloride; sodium acetate; sodium chloride
INJECTABLE;INJECTION018895
Ony
INFASURF PRESERVATIVE FREE
calfactant
SUSPENSION;INTRATRACHEAL020521
Akorn
CAPASTAT SULFATE
capreomycin sulfate
INJECTABLE;INJECTION050095
Alcon
MIOSTAT
carbachol
SOLUTION;INTRAOCULAR016968
Pharmacia And Upjohn
HEMABATE
carboprost tromethamine
INJECTABLE;INJECTION017989
Nexgen Pharma
CHENODIOL
chenodiol
TABLET;ORAL091019
Aspen Global Inc
LEUKERAN
chlorambucil
TABLET;ORAL010669
Fresenius Kabi Usa
CHLORAMPHENICOL SODIUM SUCCINATE
chloramphenicol sodium succinate
INJECTABLE;INJECTION062365
Valeant Pharms
LIBRAX
chlordiazepoxide hydrochloride; clidinium bromide
CAPSULE;ORAL012750
Hospira
CHROMIC CHLORIDE IN PLASTIC CONTAINER
chromic chloride
INJECTABLE;INJECTION018961
Novartis Pharms Corp
CIPRO HC
ciprofloxacin hydrochloride; hydrocortisone
SUSPENSION/DROPS;OTIC020805
United Guardian
RENACIDIN
citric acid; gluconolactone; magnesium carbonate
SOLUTION;IRRIGATION019481
Exalenz Bioscience
IDKIT:HP
citric acid; urea c-13
FOR SOLUTION, TABLET, FOR SOLUTION;ORAL021314
Promius Pharma Llc
CLODERM
clocortolone pivalate
CREAM;TOPICAL017765
Sti Pharma Llc
TRIACIN-C
codeine phosphate; pseudoephedrine hydrochloride; triprolidine hydrochloride
SYRUP;ORAL088704
Endo Pharms Inc
COLY-MYCIN S
colistin sulfate; hydrocortisone acetate; neomycin sulfate; thonzonium bromide
SUSPENSION/DROPS;OTIC050356
Teva Womens
PARAGARD T 380A
copper
INTRAUTERINE DEVICE;INTRAUTERINE018680
Ferring
ACTHREL
corticorelin ovine triflutate
INJECTABLE;INJECTION020162
Hikma Intl Pharms
CORTISONE ACETATE
cortisone acetate
TABLET;ORAL080776
Hospira
CUPRIC CHLORIDE IN PLASTIC CONTAINER
cupric chloride
INJECTABLE;INJECTION018960
Novartis Pharms Corp
CYCLOMYDRIL
cyclopentolate hydrochloride; phenylephrine hydrochloride
SOLUTION/DROPS;OPHTHALMIC084300
Purdue Gmp
SEROMYCIN
cycloserine
CAPSULE;ORAL060593
King Pharms
SYNERCID
dalfopristin; quinupristin
INJECTABLE;IV (INFUSION)050748
Baxter Hlthcare
SUPRANE
desflurane
LIQUID;INHALATION020118
Valeant Pharms North
IPRIVASK
desirudin recombinant
INJECTABLE;SUBCUTANEOUS021271
Sun Pharm Inds
PIROXICAM
desmethyl piroxicam
CAPSULE;ORAL073536
Avanthi Inc
DEXBROMPHENIRAMINE MALEATE AND PSEUDOEPHEDRINE SULFATE
dexbrompheniramine maleate; pseudoephedrine sulfate
TABLET, EXTENDED RELEASE;ORAL078648
Wockhardt
DEXCHLORPHENIRAMINE MALEATE
dexchlorpheniramine maleate
SYRUP;ORAL088251
Baxter Hlthcare
PLASMA-LYTE 56 AND DEXTROSE 5% IN PLASTIC CONTAINER
dextrose; magnesium acetate tetrahydrate; potassium acetate; sodium chloride
INJECTABLE;INJECTION017385
Icu Medical Inc
NORMOSOL-M AND DEXTROSE 5% IN PLASTIC CONTAINER
dextrose; magnesium acetate; potassium acetate; sodium chloride
INJECTABLE;INJECTION017610
B Braun
ISOLYTE P IN DEXTROSE 5% IN PLASTIC CONTAINER
dextrose; magnesium chloride; potassium chloride; potassium phosphate, dibasic; sodium acetate
INJECTABLE;INJECTION019873
Baxter Hlthcare
DEXTROSE 5% AND ELECTROLYTE NO. 48 IN PLASTIC CONTAINER
dextrose; magnesium chloride; potassium chloride; potassium phosphate, monobasic; sodium chloride; sodium lactate
INJECTABLE;INJECTION017484
Icu Medical Inc
IONOSOL MB AND DEXTROSE 5% IN PLASTIC CONTAINER
dextrose; magnesium chloride; potassium chloride; potassium phosphate, monobasic; sodium lactate; sodium phosphate, monobasic anhydrous
INJECTABLE;INJECTION019513
Icu Medical Inc
NORMOSOL-R AND DEXTROSE 5% IN PLASTIC CONTAINER
dextrose; magnesium chloride; potassium chloride; sodium acetate; sodium chloride; sodium gluconate
INJECTABLE;INJECTION017609
Bracco
SINOGRAFIN
diatrizoate meglumine; iodipamide meglumine
SOLUTION;INTRAUTERINE011324
Teva Branded Pharm
PROGLYCEM
diazoxide
SUSPENSION;ORAL017453
Fresenius Kabi Usa
DIMENHYDRINATE
dimenhydrinate
INJECTABLE;INJECTION040519
Akorn
BAL
dimercaprol
INJECTABLE;INJECTION005939
Glaxosmithkline
ABREVA
docosanol
CREAM;TOPICAL020941
Pfizer
VIBRAMYCIN
doxycycline calcium
SUSPENSION;ORAL050480
Wyeth Pharms Inc
PHOSPHOLINE IODIDE
echothiophate iodide
FOR SOLUTION;OPHTHALMIC011963
Medicis
CALCIUM DISODIUM VERSENATE
edetate calcium disodium
INJECTABLE;INJECTION008922
Mylan Institutional
ENLON
edrophonium chloride
INJECTABLE;INJECTION088873
Skinmedica
VANIQA
eflornithine hydrochloride
CREAM;TOPICAL021145
Novartis Pharms Corp
EMADINE
emedastine difumarate
SOLUTION/DROPS;OPHTHALMIC020706
Roche
FUZEON
enfuvirtide
INJECTABLE;SUBCUTANEOUS021481
Sun Pharm Inds
ERGOLOID MESYLATES
ergoloid mesylates
TABLET;ORAL081113
Tersera Theraps Llc
ERGOMAR
ergotamine tartrate
TABLET;SUBLINGUAL087693
Arbor Pharms Llc
ERYTHROCIN STEARATE
erythromycin stearate
TABLET;ORAL060359
Pharmacia And Upjohn
DEPO-ESTRADIOL
estradiol cypionate
INJECTABLE;INJECTION085470
Exeltis Usa Inc
ESTRASORB
estradiol hemihydrate
EMULSION;TOPICAL021371
Bayer Hlthcare
CLIMARA PRO
estradiol; levonorgestrel
FILM, EXTENDED RELEASE;TRANSDERMAL021258
Barr
ESTRADIOL AND NORGESTIMATE
estradiol; norgestimate
TABLET;ORAL076812
Pharmacia And Upjohn
EMCYT
estramustine phosphate sodium
CAPSULE;ORAL018045
Qol Medcl
ETHAMOLIN
ethanolamine oleate
INJECTABLE;INJECTION019357
Mylan Technologies
XULANE
ethinyl estradiol; norelgestromin
FILM, EXTENDED RELEASE;TRANSDERMAL200910
Wyeth Pharms Inc
TRECATOR
ethionamide
TABLET;ORAL013026
Recordati Rare
PEGANONE
ethotoin
TABLET;ORAL010841
Bristol Myers Squibb
ETOPOPHOS PRESERVATIVE FREE
etoposide phosphate
INJECTABLE;INJECTION020457
Heyl Chemisch
RADIOGARDASE (PRUSSIAN BLUE)
ferric hexacyanoferrate(ii)
CAPSULE;ORAL021626
Medimetriks Pharms
NEO-SYNALAR
fluocinolone acetonide; neomycin sulfate
CREAM;TOPICAL060700
Novartis Pharms Corp
FLAREX
fluorometholone acetate
SUSPENSION/DROPS;OPHTHALMIC019079
Usl Pharma
FLUOXYMESTERONE
fluoxymesterone
TABLET;ORAL088342
Zambon Spa
MONUROL
fosfomycin tromethamine
FOR SUSPENSION;ORAL050717
Fresenius Kabi Usa
GLUCAGON
glucagon hydrochloride
POWDER;INTRAMUSCULAR, INTRAVENOUS201849
Novo Nordisk
GLUCAGEN
glucagon hydrochloride recombinant
INJECTABLE;INJECTION020918
Lilly
GLUCAGON
glucagon recombinant
INJECTABLE;INJECTION020928
Mission Pharmacal Co
FLOWTUSS
guaifenesin; hydrocodone bitartrate
SOLUTION;ORAL022424
Mission Pharmacal Co
HYCOFENIX
guaifenesin; hydrocodone bitartrate; pseudoephedrine hydrochloride
SOLUTION;ORAL022279
Merck Sharp Dohme
GUANIDINE HYDROCHLORIDE
guanidine hydrochloride
TABLET;ORAL001546
Monarch Pharms
CORTISPORIN
hydrocortisone acetate; neomycin sulfate; polymyxin b sulfate
CREAM;TOPICAL050218
Taro
U-CORT
hydrocortisone acetate; urea
CREAM;TOPICAL089472
Fougera Pharms
PANDEL
hydrocortisone probutate
CREAM;TOPICAL020453
Shire Llc
SALURON
hydroflumethiazide
TABLET;ORAL011949
Akorn
PAREMYD
hydroxyamphetamine hydrobromide; tropicamide
SOLUTION/DROPS;OPHTHALMIC019261
Aton
LACRISERT
hydroxypropyl cellulose
INSERT;OPHTHALMIC018771
West-ward Pharms Int
AMRINONE LACTATE
inamrinone lactate
INJECTABLE;INJECTION075513
Ge Healthcare
INDIUM IN 111 OXYQUINOLINE
indium in-111 oxyquinoline
INJECTABLE;INJECTION019044
Ge Healthcare
MPI INDIUM DTPA IN 111
indium in-111 pentetate disodium
INJECTABLE;INTRATHECAL017707
Ge Healthcare
ADREVIEW
iobenguane sulfate i-123
SOLUTION;INTRAVENOUS022290
Ge Hlthcare Inc
DATSCAN
ioflupane i-123
SOLUTION;INTRAVENOUS022454
Isotex
GLOFIL-125
iothalamate sodium i-125
INJECTABLE;INJECTION017279
Validus Pharms Inc
MARPLAN
isocarboxazid
TABLET;ORAL011961
Sanofi Aventis Us
RIFATER
isoniazid; pyrazinamide; rifampin
TABLET;ORAL050705
Sanofi Aventis Us
RIFAMATE
isoniazid; rifampin
CAPSULE;ORAL061884
Deproco
SCANDONEST L
levonordefrin; mepivacaine hydrochloride
INJECTABLE;INJECTION088388
Sentynl Theraps Inc
LEVORPHANOL TARTRATE
levorphanol tartrate
TABLET;ORAL074278
Novartis Pharms Corp
ALOMIDE
lodoxamide tromethamine
SOLUTION/DROPS;OPHTHALMIC020191
Bausch And Lomb
ZYLET
loteprednol etabonate; tobramycin
SUSPENSION/DROPS;OPHTHALMIC050804
B Braun
ISOLYTE S PH 7.4 IN PLASTIC CONTAINER
magnesium chloride; potassium chloride; potassium phosphate, monobasic; sodium acetate; sodium chloride; sodium gluconate; sodium phosphate, dibasic, heptahydrate
INJECTABLE;INJECTION019696
Hospira
MANGANESE CHLORIDE IN PLASTIC CONTAINER
manganese chloride
INJECTABLE;INJECTION018962
Icu Medical Inc
SORBITOL-MANNITOL IN PLASTIC CONTAINER
mannitol; sorbitol
SOLUTION;IRRIGATION018316
Nexgen Pharma
MECAMYLAMINE HYDROCHLORIDE
mecamylamine hydrochloride
TABLET;ORAL204054
Rempex Pharms Medcns
VABOMERE
meropenem; vaborbactam
POWDER;IV (INFUSION)209776
Actavis Labs Ut Inc
NORINYL 1+50 28-DAY
mestranol; norethindrone
TABLET;ORAL-28016659
Fresenius Kabi Usa
METARAMINOL BITARTRATE
metaraminol bitartrate
INJECTABLE;INJECTION080722
Mylan Pharms Inc
METHYCLOTHIAZIDE
methyclothiazide
TABLET;ORAL087672
Luitpold
METHYLDOPATE HYDROCHLORIDE
methyldopate hydrochloride
INJECTABLE;INJECTION071279
Hra Pharma
METOPIRONE
metyrapone
CAPSULE;ORAL012911
Aton Pharma Vpna
DEMSER
metyrosine
CAPSULE;ORAL017871
Actelion Pharms Ltd
ZAVESCA
miglustat
CAPSULE;ORAL021348
Bristol Myers Squibb
LYSODREN
mitotane
TABLET;ORAL016885
Mylan Speciality Lp
CESAMET
nabilone
CAPSULE;ORAL018677
Gd Searle Llc
SYNAREL
nafarelin acetate
SPRAY, METERED;NASAL019886
Luitpold Pharms Inc
NANDROLONE DECANOATE
nandrolone decanoate
INJECTABLE;INJECTION091252
Akorn Inc
NAPHAZOLINE HYDROCHLORIDE
naphazoline hydrochloride
SOLUTION/DROPS;OPHTHALMIC083590
Novartis Pharms Corp
NATACYN
natamycin
SUSPENSION;OPHTHALMIC050514
Scios Llc
NATRECOR
nesiritide recombinant
FOR SOLUTION;INTRAVENOUS020920
Mayer Labs Inc
TODAY
nonoxynol-9
SPONGE;VAGINAL018683
Mylan Speciality Lp
DIPENTUM
olsalazine sodium
CAPSULE;ORAL019715
Mylan Speciality Lp
ANADROL-50
oxymetholone
TABLET;ORAL016848
Casper Pharma Llc
TERRAMYCIN W/ POLYMYXIN B SULFATE
oxytetracycline hydrochloride; polymyxin b sulfate
OINTMENT;OPHTHALMIC061015
Sigma Tau
ADAGEN
pegademase bovine
INJECTABLE;INJECTION019818
Sandoz
PENICILLIN G SODIUM
penicillin g sodium
INJECTABLE;INTRAMUSCULAR, INTRAVENOUS065068
Hospira
TALWIN
pentazocine lactate
INJECTABLE;INJECTION016194
Hameln Pharma Plus
PENTETATE CALCIUM TRISODIUM
pentetate calcium trisodium
SOLUTION;INHALATION, INTRAVENOUS021749
Hameln Pharma Plus
PENTETATE ZINC TRISODIUM
pentetate zinc trisodium
SOLUTION;INHALATION, INTRAVENOUS021751
Janssen Pharms
ELMIRON
pentosan polysulfate sodium
CAPSULE;ORAL020193
Chiesi Usa Inc
CUROSURF
poractant alfa
SUSPENSION;INTRATRACHEAL020744
Concordia Labs Inc
PHOTOFRIN
porfimer sodium
INJECTABLE;INJECTION020451
Bayer Hlthcare
BILTRICIDE
praziquantel
TABLET;ORAL018714
Septodont Inc
PRILOCAINE HYDROCHLORIDE
prilocaine hydrochloride
INJECTABLE;INJECTION079235
Leadiant Biosci Inc
MATULANE
procarbazine hydrochloride
CAPSULE;ORAL016785
West-ward Pharms Int
PROPANTHELINE BROMIDE
propantheline bromide
TABLET;ORAL080927
Fresenius Kabi Usa
PROTAMINE SULFATE
protamine sulfate
INJECTABLE;INJECTION089454
Schering Plough
AFRINOL
pseudoephedrine sulfate
TABLET, EXTENDED RELEASE;ORAL018191
Niagara Pharms
PUR-WASH
purified water
SOLUTION;OPHTHALMIC022305
Turing Pharms Llc
DARAPRIM
pyrimethamine
TABLET;ORAL008578
Sanofi Aventis Us
PRIFTIN
rifapentine
TABLET;ORAL021024
Lantheus Medical
QUADRAMET
samarium sm-153 lexidronam pentasodium
INJECTABLE;INJECTION020570
Valeant Luxembourg
ERTACZO
sertaconazole nitrate
CREAM;TOPICAL021385
Hospira
SODIUM ACETATE IN PLASTIC CONTAINER
sodium acetate anhydrous
INJECTABLE;INJECTION018893
Colgate Palmolive
COLGATE TOTAL
sodium fluoride; triclosan
PASTE;DENTAL020231
Hospira
SODIUM LACTATE IN PLASTIC CONTAINER
sodium lactate
INJECTABLE;INJECTION018947
Hospira
SODIUM PHOSPHATES IN PLASTIC CONTAINER
sodium phosphate, dibasic, heptahydrate; sodium phosphate, monobasic, anhydrous
INJECTABLE;INJECTION018892
X Gen Pharms
STREPTOMYCIN SULFATE
streptomycin sulfate
INJECTABLE;INJECTION064210
Teva Pharms Usa
ZANOSAR
streptozocin
INJECTABLE;INJECTION050577
Recordati Rare
CHEMET
succimer
CAPSULE;ORAL019998
Sandoz
SULFADIAZINE
sulfadiazine
TABLET;ORAL040091
Mylan Speciality Lp
AVC
sulfanilamide
CREAM;VAGINAL006530
Lantheus Medcl
NEUROLITE
technetium tc-99m bicisate kit
INJECTABLE;INJECTION020256
Pharmalucence
HEPATOLITE
technetium tc-99m disofenin kit
INJECTABLE;INJECTION018467
Jubilant Draximage
DRAXIMAGE MDP-25
technetium tc-99m medronate
INJECTABLE;INJECTION018035
Mallinkrodt Nuclear
TECHNESCAN MAG3
technetium tc-99m mertiatide kit
INJECTABLE;INJECTION019882
Mallinkrodt Nuclear
TECHNESCAN
technetium tc-99m oxidronate kit
INJECTABLE;INJECTION018321
Draximage
DTPA
technetium tc-99m pentetate kit
INJECTABLE;INJECTION018511
Mallinkrodt Nuclear
ULTRATAG
technetium tc-99m red blood cell kit
INJECTABLE;INJECTION019981
Ge Healthcare
MYOVIEW 30ML
technetium tc-99m tetrofosmin kit
INJECTABLE;INJECTION020372
Novartis
LAMISIL AT
terbinafine
GEL;TOPICAL021958
Novartis Pharms Corp
TETRACAINE HYDROCHLORIDE
tetracaine hydrochloride
SOLUTION;OPHTHALMIC208135
Aspen Global Inc
THIOGUANINE
thioguanine
TABLET;ORAL012429
Genzyme
THYROGEN
thyrotropin alfa
INJECTABLE;INJECTION020898
Mission Pharma
THIOLA
tiopronin
TABLET;ORAL019569
Mylan Pharms Inc
TOLBUTAMIDE
tolbutamide
TABLET;ORAL086445
Kyowa Kirin
FARESTON
toremifene citrate
TABLET;ORAL020497
Aton
SYPRINE
trientine hydrochloride
CAPSULE;ORAL019194
Abbvie
TRIDIONE
trimethadione
TABLET;ORAL005856
Hospira
THAM
tromethamine
INJECTABLE;INJECTION013025
Endo Pharm
VALSTAR PRESERVATIVE FREE
valrubicin
SOLUTION;INTRAVESICAL020892
Valeant Luxembourg
VISUDYNE
verteporfin
INJECTABLE;INJECTION021119
Hospira
AQUASOL A
vitamin a palmitate
INJECTABLE;INJECTION006823
Glaxosmithkline
RELENZA
zanamivir
POWDER;INHALATION021036
Hospira
ZINC CHLORIDE IN PLASTIC CONTAINER
zinc chloride
INJECTABLE;INJECTION018959

Why might a drug have no patents or regulatory protections, and no competition?

Manufacturing and selling generic versions of off-patent drugs can be a financially-rewarding business. In many cases innovators invest substantial amounts of time and money to demonstrate the safety and efficacy of their drugs, and they then use the period of patent-protected sales to recoup their R&D investments. Following patent expiration generic companies can use both the safety and efficacy information from the original branded drug, and also the observational market research which helps them understand the market potential for a generic drug.

Broadly speaking, if there is nothing blocking generic production of a drug, and there are no generic alternatives, then one may look to market dynamics to suggest the reasons.

  • Low sales volume / profitability
    • Many drugs on this list are simply not sufficiently financially attractive spur interest among generic developers.
  • High manufacturing costs
    • High manufacturing costs can limit the profitability of generic sales. For drugs with sufficiently-large revenue potential, it may be attractive for generic manufacturers to research improved (and potentially patentable) manufacturing methods.
  • Trade secrets
    • Some drugs, like Premarin may eschew patent protection for trade secrets. As in the case of high manufacturing costs, some generic manufacturers may find the market potential sufficiently attractive to invest in developing new manufacturing methods.

For more on this topic, see the companion article, Drugs With No Patents And No Competition: Here’s Why.

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