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Levothyroxine

In some countries, this medicine may only be approved for veterinary use.

In the US, Levothyroxine (levothyroxine systemic) is a member of the drug class thyroid drugs and is used to treat Hashimoto's disease, Hypothyroidism - After Thyroid Removal, Myxedema Coma, Thyroid Suppression Test, TSH Suppression and Underactive Thyroid.

US matches:

Scheme

BAN

CAS registry number (Chemical Abstracts Service)

0000051-48-9

Chemical Formula

C15-H10-I4-N-O4

Molecular Weight

776

Therapeutic Categories

Thyroid hormone

Hormone replacement therapy (HRT)

Chemical Name

L-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-

Foreign Names

  • Levothyroxinum (Latin)
  • Levothyroxin (German)
  • Lévothyroxine (French)

Generic Names

  • Levothyroxine (OS: BAN)
  • L-Thyroxine (IS)
  • Thyroxine (IS)
  • Thyroxinum laevogirum (IS)
  • Thyroxinum (PH: Ph. Helv. VI)
  • Lévothyroxine sodique (OS: DCF)
  • Levothyroxine Sodium (OS: BANM)
  • Levotiroxina sodica (OS: DCIT)
  • Thyroxin-Natrium (IS)
  • Thyroxinum natricum (IS)
  • Lévothyroxine sodique (PH: Ph. Eur. 9)
  • Levothyroxine Sodium (PH: BP 2018, Ph. Int. 7, USP 41)
  • Levothyroxine sodium (PH: Ph. Eur. 9)
  • Levothyroxin-Natrium (PH: Ph. Eur. 9)
  • Levothyroxinum natricum (PH: Ph. Eur. 9, Ph. Int. 7)
  • Levothyroxine Sodium Hydrate (OS: JAN)
  • UNII-9J765S329G (IS)
  • Lévothyroxine sodique (PH: Ph. Eur. 9)
  • Levothyroxine sodium (PH: Ph. Eur. 9, Ph. Int. 4)
  • Levothyroxine Sodium Hydrate (PH: JP XVII)
  • Levothyroxinnatrium (PH: Ph. Eur. 9)
  • Levothyroxinum natricum (PH: Ph. Eur. 9)

Brand Names

  • Berlthyrox
    Berlin-Chemie, Tunisia; Menarini, Lebanon
  • Bitiron [+ Liothyronine]
    Abdi Ibrahim, Turkey
  • Dermocinetic [+ Escin]
    Geymonat, Italy
  • Eltroxin
    Glaxo Smithkline, Lebanon; GlaxoSmithKline, Egypt
  • Euthycin
    Incepta, Bangladesh
  • Euthyrox
    Merck, Egypt; Merck Kgaa, Lebanon
  • Leutiral
    Silanes, Mexico
  • Lévothyrox
    Merck Santé, Tunisia
  • Levothyroxin Stada 100 μg
    Stada Arzneimittel, Austria
  • Levothyroxin Stada 125 μg
    Stada Arzneimittel, Austria
  • Levothyroxin Stada 150 μg
    Stada Arzneimittel, Austria
  • Levothyroxin Stada 175 μg
    Stada Arzneimittel, Austria
  • Levothyroxin Stada 200 μg
    Stada Arzneimittel, Austria
  • Levothyroxin Stada 50 μg
    Stada Arzneimittel, Austria
  • Levothyroxin Stada 75 μg
    Stada Arzneimittel, Austria
  • Levotiron
    Abdi Ibrahim, Turkey
  • L-Thyroxin Henning
    Organon, Latvia
  • Novothyral [+ Liothyronine]
    Sanolabor, Slovenia
  • Somatoline [+ Escin]
    Manetti Roberts, Italy
  • T4 Pharma Arte
    Pharma Arte, Paraguay
  • T4 Thyro
    MUP, Egypt
  • T4-Bago 150
    Bago, Peru
  • Thiroyd
    Greater Pharma, Thailand
  • Thyro-4
    Angelini, Tunisia
  • Thyroid-S
    Sriprasit Pharma, Thailand
  • Thyrox
    Renata, Bangladesh
  • Tiroidina [+ Liothyronine]
    Dispert, Uruguay
  • Tirosint
    IBSA Farmaceutici Italia, Italy
  • Tiroxin
    Metlen, Ecuador
  • Tyraxin
    Memphis Co., Egypt
  • Accu-Thyrox
    Galenica, Romania
  • Accu-thyrox 100mcg
    Galenica, Bulgaria
  • Accu-thyrox 25mcg
    Galenica, Bulgaria
  • Accu-thyrox 50mcg
    Galenica, Bulgaria
  • Aliasint
    IBSA Farmaceutici Italia, Italy
  • Boncheck
    Bonapharm, Peru
  • Cynocuatro
    Valeant Grossman, Mexico
  • Cynoplus [+ Liothyronine]
    Valeant Grossman, Mexico
  • Dexnon
    Kern Pharma, Spain
  • Diotroxin [+ Liothyronine]
    Pharmacare, South Africa
  • Dobesium
    Pharmacheck, Peru
  • Eferox
    Aristo Pharma, Germany
  • Eltroxin
    Alfred Gera, Malta; Aspen, Czech Republic; Aspen, Lithuania; Aspen, New Zealand; Aspen, Philippines; Aspen, Poland; Aspen Nordic, Denmark; Aspen Pharmacare, Australia; Aspen Pharmacare, Canada; Aspen Pharmacare/Menarini, Singapore; Concordia, United Kingdom; Glaxo Wellcome, Lithuania; GlaxoSmithKline, Bangladesh; GlaxoSmithKline, India; GlaxoSmithKline, Kuwait; GlaxoSmithKline, Taiwan; GlaxoSmithKline, South Africa; Mercury, Malta
  • Eltroxin 100mcg
    Aspen, Israel
  • Eltroxin 50mcg
    Aspen, Israel; Aspen Pharma, Oman
  • Eltroxin/Levothyroxine
    Alfred Gera, Malta
  • Eltroxin/Thyroxine
    Mercury, Malta
  • Eltroxin-LF 0.05mg
    Alfasigma, Switzerland
  • Eltroxin-LF 0.1mg
    Alfasigma, Switzerland
  • Eurolev
    Renata, Philippines
  • Euthyral [+ Liothyronine]
    Merck Serono, France
  • Euthyrox
    BModesto, Netherlands; Dr. Fisher Farma, Netherlands; Elea, Argentina; Eureco-Pharma, Netherlands; Euro Registratie, Netherlands; Merck, Bosnia & Herzegowina; Merck, Brazil; Merck, Czech Republic; Merck, Denmark; Merck, Georgia; Merck, Greece; Merck, Croatia (Hrvatska); Merck, Indonesia; Merck, Norway; Merck, Philippines; Merck, Serbia; Merck, Sweden; Merck, Slovakia; Merck, Turkey; Merck, Venezuela; Merck A E Hellas, Cyprus; Merck Consumer Healthcare, Belgium; Merck Healthcare, Netherlands; Merck KGaA, Iceland; Merck KGaA, Macedonia; Merck KGaA, Romania; Merck Sereno, Latvia; Merck Serono, China; Merck Serono, Germany; Merck Serono, Malaysia; Merck Serono, Russian Federation; Merck Serono, South Africa; Merck Merck Serono Division, Singapore
  • Euthyrox 100
    Merck, Switzerland; Merck, Lithuania
  • Euthyrox 100 µg
    Merck, Austria; Merck, Bulgaria; Merck, Hungary; Merck KGaA, Oman
  • Euthyrox 100mcg
    Merck, Luxembourg; Merck Serono Ltd, Israel
  • Euthyrox 112 µg
    Merck, Austria
  • Euthyrox 125
    Merck, Switzerland
  • Euthyrox 125 µg
    Merck, Austria; Merck, Bulgaria; Merck, Hungary
  • Euthyrox 125mcg
    Merck, Luxembourg
  • Euthyrox 137 µg
    Merck, Austria
  • Euthyrox 150
    Merck, Switzerland
  • Euthyrox 150 µg
    Merck, Austria; Merck, Hungary; Merck KGaA, Oman
  • Euthyrox 150mcg
    Merck, Luxembourg
  • Euthyrox 175
    Merck, Switzerland
  • Euthyrox 175 µg
    Merck, Austria; Merck, Hungary
  • Euthyrox 175mcg
    Merck, Luxembourg
  • Euthyrox 200
    Merck, Switzerland
  • Euthyrox 200 µg
    Merck, Austria
  • Euthyrox 200mcg
    Merck, Luxembourg
  • Euthyrox 25
    Merck, Switzerland
  • Euthyrox 25 µg
    Merck, Austria; Merck, Bulgaria; Merck KGaA, Oman
  • Euthyrox 25mcg
    Merck, Luxembourg
  • Euthyrox 50
    Merck, Switzerland
  • Euthyrox 50 µg
    Merck, Austria; Merck, Bulgaria; Merck, Hungary; Merck KGaA, Oman
  • Euthyrox 50mcg
    Merck, Luxembourg; Merck Serono Ltd, Israel
  • Euthyrox 75
    Merck, Switzerland
  • Euthyrox 75 µg
    Merck, Austria; Merck, Bulgaria; Merck, Hungary
  • Euthyrox 75mcg
    Merck, Luxembourg
  • Euthyrox 88 µg
    Merck, Austria
  • Euthyrox N
    Merck, Poland
  • Eutirox
    Bracco, Italy; Merck, Chile; Merck, Colombia; Merck, Ecuador; Merck, Mexico; Merck, Peru; Merck, Portugal; Merck S.L., Spain
  • Eutroxsig
    Aspen Pharmacare, Australia
  • Forthyron [veterinary use]
    Albrecht, Germany; Dechra, Norway; Eurovet Animal Health, Belgium; Eurovet Animal Health BV, United Kingdom; Selectavet, Germany
  • Forthyron 200 µg für Hunde [veterinary use]
    Eurovet Animal Health, Austria
  • Forthyron 200 microgram voor honden [veterinary use]
    Eurovet Animal Health, Netherlands
  • Forthyron 200 mikrogramow dla psow For dogs [veterinary use]
    Eurovet Animal Health, Poland
  • Forthyron 400 µg für Hunde [veterinary use]
    Eurovet Animal Health, Austria
  • Forthyron 400 microgram voor honden [veterinary use]
    Eurovet Animal Health, Netherlands
  • Forthyron 400 mikrogramow dla psow For dogs [veterinary use]
    Eurovet Animal Health, Poland
  • Forthyron 600 microgram voor honden [veterinary use]
    Eurovet Animal Health, Netherlands
  • Forthyron 600 mikrogramow dla psow For dogs [veterinary use]
    Eurovet Animal Health, Poland
  • Forthyron 800 microgram voor honden [veterinary use]
    Eurovet Animal Health, Netherlands
  • Forthyron 800 mikrogramow dla psow For dogs [veterinary use]
    Eurovet Animal Health, Poland
  • Forthyron F M pour chiens [veterinary use]
    Dechra Veterinary Products, France
  • Forthyron F S pour chiens [veterinary use]
    Dechra Veterinary Products, France
  • Forthyron F XL pour chiens [veterinary use]
    Dechra Veterinary Products, France
  • Forthyron Smak [veterinary use]
    Dechra, Finland; Dechra, Sweden
  • Goldshield Levothyroxine
    Goldshield Pharmaceuticals, Hong Kong
  • Jaroxin
    Jayson, Bangladesh
  • Jodthyrox [+ Potassium Iodide]
    Merck, Austria; Merck, Czech Republic; Merck, Poland; Merck Serono, Germany
  • Karet
    Armstrong Laboratorios de Mexico, Mexico
  • L Thyroxine SERB
    SERB Laboratoires, France
  • Letrox
    Berlin Chemie, Bosnia & Herzegowina; Berlin-Chemie, China; Berlin-Chemie, Czech Republic; Berlin-Chemie, Croatia (Hrvatska); Berlin-Chemie, Macedonia; Berlin-Chemie/ Menarini, Poland
  • Letrox 100
    Berlin-Chemie, Serbia
  • Letrox 100 µg
    Berlin-Chemie, Hungary
  • Letrox 125 µg
    Berlin-Chemie, Hungary
  • Letrox 150
    Berlin-Chemie, Serbia
  • Letrox 50
    Berlin-Chemie, Serbia
  • Letrox 50 µg
    Berlin-Chemie, Hungary
  • Letrox 75 µg
    Berlin-Chemie, Hungary
  • Letter
    Sanofi, Portugal
  • Levaxin
    Sanolabor, Slovenia; Takeda, Norway; Takeda Pharma, Sweden; Takeda Pharma A/S, Iceland
  • Leventa [veterinary use]
    Intervet, Belgium; Intervet, United Kingdom; Intervet, Netherlands; Intervet, Sweden; Intervet Ireland, Ireland; MSD, New Zealand; MSD Animal Health, Switzerland; MSD Santé Animale Intervet, France
  • Levo-4
    Rafarm, Greece
  • Levoid
    Aché, Brazil
  • Levolet
    Hamad, Bahrain
  • Levothyrox
    Merck KGaA, Vietnam; Merck Serono, France
  • Levothyroxine
    Actavis, Indonesia; Actavis UK, United Kingdom; Actavis UK, Malta; APP, Hong Kong; Boucher & Muir, New Zealand; Colonis Pharma, United Kingdom; Concordia, United Kingdom; Jensonr Plus, United Kingdom; Teva, Malta; Wockhardt UK, United Kingdom
  • Levothyroxine - ZhongLian Pharm
    ZhongLian Pharm, China
  • Levothyroxine Actavis
    Actavis, Hong Kong
  • Lévothyroxine Biogaran
    Biogaran, France
  • Levothyroxine Mercury Pharma
    Mercury, Malta
  • Levothyroxine natrium Uni-Pharma
    Uni-Pharma, Netherlands
  • Levothyroxine P & D
    P & D, Malta
  • Levothyroxine Sodium
    EMD Serono, United States; Fresenius Kabi, United States; Mylan, United States; Par Pharmaceutical, United States
  • Levothyroxine Sodium Fresenius Kabi
    Fresenius Kabi Canada, Canada
  • Levothyroxine Sodium Vale
    Vale Pharmaceuticals, Poland
  • Levothyroxine Teva
    Teva Pharmaceuticals, Poland
  • Levothyroxine Wockhardt
    Wockhardt, Malta
  • Levothyroxine-Humanity
    Par, Georgia
  • Levothyroxinenatrium Teva
    Teva Nederland, Netherlands
  • Levotiroteg
    Laboratorio Tecnoquímicas, Guatemala; Laboratorio Tecnoquímicas, Honduras; Laboratorio Tecnoquímicas, El Salvador
  • Levotirox Lafedar
    Lafedar, Argentina
  • Levotiroxina
    ADN Pharma, Mexico
  • Levotiroxina Fabra 100
    Fabra, Argentina
  • Levotiroxina GlaxoSmithKline
    GlaxoSmithKline, Paraguay
  • Levo-tiroxina GlaxoSmithKline
    GlaxoSmithKline, Argentina
  • Levotiroxina MK
    MK, Colombia
  • Levotiroxina Norpharm
    Norpharm, Italy
  • Levotiroxina Sanofi
    Sanofi-Aventis, Spain
  • Levotiroxina Sodica 100 Gramon Bago
    Gramón Bagó, Uruguay
  • Levotiroxina Sodica 150 Gramon Bago
    Gramón Bagó, Uruguay
  • Levotiroxina Sodica 50 Gramon Bago
    Gramón Bagó, Uruguay
  • Levotiroxina Sodica Andromaco
    Laboratorios Andromaco, Chile
  • Levotiroxina Sodica L.CH.
    Chile S.A., Paraguay; Laboratorio Chile, Chile
  • Levotiroxina Sódica Merck
    Merck, Brazil
  • Levotiroxina Sodica Ratiopharm
    Ratiopharm, Spain
  • Levotiroxina Sódica Ratiopharm
    Ratiopharm, Portugal
  • Levotiroxina Sodica Teva
    Teva, Spain
  • Levoxyl
    King Pharmaceuticals, United States
  • L-Thyrox HEXAL
    Hexal, Germany
  • L-Thyrox Jod HEXAL [+ Potassium Iodide]
    Hexal, Germany
  • L-Thyroxin - 1 A Pharma
    1 A Pharma, Germany
  • L-Thyroxin 100 Berlin-Chemie
    Berlin-Chemie AG, Bulgaria
  • L-Thyroxin 150 Berlin-Chemie
    Berlin-Chemie AG, Bulgaria
  • L-Thyroxin 50 Berlin-Chemie
    Berlin-Chemie AG, Bulgaria
  • L-Thyroxin 75 Berlin-Chemie
    Berlin-Chemie AG, Bulgaria
  • L-Thyroxin AL
    Aliud Pharma, Germany
  • L-Thyroxin Aristo
    Aristo Pharma, Germany
  • L-Thyroxin Aventis
    Sanofi, Germany
  • L-Thyroxin Berlin
    Berlin-Chemie, Latvia
  • L-Thyroxin Berlin-Chemie
    Berlin-Chemie, Estonia; Berlin-Chemie, Georgia; Berlin-Chemie, Lithuania; Berlin-Chemie, Slovakia
  • L-Thyroxin beta
    Betapharm, Germany
  • L-Thyroxin Henning
    Henning Berlin, Germany; LENIS, Slovenia
  • L-Thyroxin Henning 100
    Henning Berlin, Germany
  • L-Thyroxin Henning 100 µg
    Sanofi-Aventis, Hungary
  • L-Thyroxin Henning 100 plus [+ Potassium Iodide]
    Henning Berlin, Germany
  • L-Thyroxin Henning 125
    Henning Berlin, Germany
  • L-Thyroxin Henning 150
    Henning Berlin, Germany
  • L-Thyroxin Henning 175
    Henning Berlin, Germany
  • L-Thyroxin Henning 200
    Henning Berlin, Germany
  • L-Thyroxin Henning 25
    Henning Berlin, Germany
  • L-Thyroxin Henning 50
    Henning Berlin, Germany
  • L-Thyroxin Henning 50 µg
    Sanofi-Aventis, Hungary
  • L-Thyroxin Henning 50 plus [+ Potassium Iodide]
    Henning Berlin, Germany
  • L-Thyroxin Henning 75
    Henning Berlin, Germany
  • L-Thyroxin Jod - 1A-Pharma [+ Potassium Iodide]
    1 A Pharma, Germany
  • L-Thyroxin Jod Winthrop [+ Potassium Iodide]
    Zentiva Pharma, Germany
  • L-Thyroxin Winthrop
    Zentiva Pharma, Germany
  • L-Thyroxin-CT
    AbZ-Pharma, Germany
  • L-Thyroxine
    Takeda Belgium, Belgium; IFET, Greece
  • L-Thyroxine [veterinary use]
    Aesculaap, Netherlands
  • L-Thyroxine Sandoz
    Sandoz, Lithuania
  • L-Thyroxine SERB
    SERB Laboratoires, France
  • L-Thyroxin-Na AbZ
    AbZ-Pharma, Germany
  • L-Thyroxin-Na-CT
    AbZ-Pharma, Germany
  • L-Thyroxin-Na-ratiopharm
    ratiopharm, Germany
  • Medithyrox
    Intermed, Greece
  • Mercury Pharma Levothyroxine
    Mercury Pharma, Hong Kong
  • Nei Zhang Qing [+ Liothyronine]
    Wujing Medicine, China
  • Novothyral [+ Liothyronine]
    Merck, Austria; Merck, Switzerland; Merck, Chile; Merck, Poland; Merck, Slovakia; Merck KGaA, Romania
  • Novothyral 100 [+ Liothyronine]
    Merck, Luxembourg; Merck Serono, Germany
  • Novothyral 75 [+ Liothyronine]
    Merck, Luxembourg; Merck Serono, Germany
  • Novotiral [+ Liothyronine]
    Merck, Mexico
  • Novtirox
    Aspen Pharma, Slovenia
  • Oroxin
    Aspen, Ireland
  • Oroxine
    Aspen, Malaysia; Aspen Pharmacare, Australia
  • Prothyrid [+ Liothyronine]
    Henning Berlin, Germany; Sanofi, Germany
  • Puran T4
    Sanofi-Aventis Farmaceutica, Brazil
  • RO
    Milefar, Uruguay
  • Soloxine [veterinary use]
    Virbac France, United Kingdom; Virbac S.A., Ireland
  • Synthroid
    Abbott, Colombia; Abbott, South Africa; Abbott Laboratorios do Brasil, Brazil; AbbVie, United States; Mylan, New Zealand
  • Synthroid 100mcg
    Abbvie, Israel
  • Synthroid 50mcg
    Abbvie, Israel
  • Synthyroxine
    Dalim, South Korea
  • Syntroxine
    IBSA, Czech Republic
  • Syntroxine 100 µg
    IBSA, Hungary
  • Syntroxine 112 µg
    IBSA, Hungary
  • Syntroxine 125 µg
    IBSA, Hungary
  • Syntroxine 13 µg
    IBSA, Hungary
  • Syntroxine 137 µg
    IBSA, Hungary
  • Syntroxine 150 µg
    IBSA, Hungary
  • Syntroxine 175 µg
    IBSA, Hungary
  • Syntroxine 200 µg
    IBSA, Hungary
  • Syntroxine 25 µg
    IBSA, Hungary
  • Syntroxine 50 µg
    IBSA, Hungary
  • Syntroxine 75 µg
    IBSA, Hungary
  • Syntroxine 88 µg
    IBSA, Hungary
  • T4
    Uni-Pharma Kleon Isetis, Cyprus
  • T4 Bago
    Bago, Paraguay
  • T4 Montpellier
    Montpellier, Argentina
  • T4 Montpellier 100
    Montpellier, Argentina
  • T4 Montpellier 112
    Montpellier, Argentina
  • T4 Montpellier 125
    Montpellier, Argentina
  • T4 Montpellier 137
    Montpellier, Argentina
  • T4 Montpellier 150
    Montpellier, Argentina
  • T4 Montpellier 175
    Montpellier, Argentina
  • T4 Montpellier 200
    Montpellier, Argentina
  • T4 Montpellier 25
    Montpellier, Argentina
  • T4 Montpellier 50
    Montpellier, Argentina
  • T4 Montpellier 75
    Montpellier, Argentina
  • T4 Montpellier 88
    Montpellier, Argentina
  • T4 Pharmetica
    Pharmetica, Paraguay
  • T4-Bago
    Laboratorio Bago, Chile; Bago, Peru
  • Tamidan
    Actavis International, Vietnam
  • Tecuatro 100mcg
    Dispert, Uruguay
  • Tecuatro 125mcg
    Dispert, Uruguay
  • Tecuatro 150mcg
    Dispert, Uruguay
  • Tecuatro 200mcg
    Dispert, Uruguay
  • Tecuatro 25mcg
    Dispert, Uruguay
  • Tecuatro 50mcg
    Dispert, Uruguay
  • Tecuatro 75mcg
    Dispert, Uruguay
  • Tefor
    VLD, Turkey
  • TevaThyrox
    Teva, Bulgaria
  • Tezarin
    World Medicine, Georgia
  • Thevier
    Aspen Pharma Trading Limited, Netherlands
  • Thevier 100
    Aspen Pharma, Germany
  • Thydin
    MedChoice, Philippines
  • Thyforon [veterinary use]
    Eurovet Animal Health, Ireland; Eurovet Animal Health BV, United Kingdom
  • Thynor
    Eskayef, Bangladesh
  • Thyrax
    Aspen, Philippines; Aspen, Portugal; Organon, Venezuela; Quamed, Indonesia
  • Thyrax Duotab
    Aspen Pharma Trading Limited, Netherlands
  • Thyrex 100 µg
    Sandoz, Austria
  • Thyrex 125 µg
    Sandoz, Austria
  • Thyrex 160 µg
    Sandoz, Austria
  • Thyrex 25 µg
    Sandoz, Austria
  • Thyrex 50 µg
    Sandoz, Austria
  • Thyrex 75 µg
    Sandoz, Austria
  • Thyrin
    Square, Bangladesh
  • Thyro Canine [veterinary use]
    Lloyd, United States
  • Thyro-4
    Angelini Pharma, Greece; Faran Laboratories, Greece
  • Thyrobest
    Bestochem, India
  • Thyrocare
    Olcare Laboratories, India
  • Thyrofix
    Uni-Pharma, Netherlands
  • Thyrohormone
    Ni-The, Greece
  • Thyrolar
    Acme, Bangladesh
  • Thyrolar [+ Liothyronine]
    Forest, United States
  • Thyromac 0.1
    Macleods Pharm, Peru
  • Thyronajod 100 Henning [+ Potassium Iodide]
    Henning Berlin, Germany; Sanofi, Germany
  • Thyronajod 125 Henning [+ Potassium Iodide]
    Henning Berlin, Germany; Sanofi, Germany
  • Thyronajod 150 Henning [+ Potassium Iodide]
    Henning Berlin, Germany; Sanofi, Germany
  • Thyronajod 50 Henning [+ Potassium Iodide]
    Henning Berlin, Germany; Sanofi, Germany
  • Thyronajod 75 Henning [+ Potassium Iodide]
    Henning Berlin, Germany; Sanofi, Germany
  • Thyronorm
    Abbott, India
  • Thyrorich
    Primus, India
  • Thyrosit
    Sriprasit Pharma, Thailand
  • Thyrotab
    Ibn Sina, Bangladesh
  • Thyrowin
    AHPL, India
  • Thyroxal 200 microgram voor honden en katten [veterinary use]
    AST, Netherlands
  • Thyroxal 600 [veterinary use]
    AST, Netherlands
  • Thyroxanil [veterinary use]
    Le Vet Pharma B.V., United Kingdom; Vetcare, Finland
  • Thyroxanil 200μg für Hunde und Katzen For dogs and cats [veterinary use]
    Le Vet, Austria
  • Thyroxanil 600μg für Hunde und Katzen For dogs and cats [veterinary use]
    Le Vet, Austria
  • Thyroxanil L voor honden en katten [veterinary use]
    Le Vet, Netherlands
  • Thyroxanil S voor honden en katten [veterinary use]
    Le Vet, Netherlands
  • Thyroxantil vet [veterinary use]
    Le Vet, Estonia; Le Vet, Iceland
  • Thyroxin
    Orion Pharma, Finland
  • Thyroxine Actavis
    Actavis, Hong Kong
  • Thyroxine for Dogs and Cats [veterinary use]
    Apex Laboratories, Australia
  • Thyroxine Oral for Dogs [veterinary use]
    Apex Laboratories, Australia
  • Thyroxine-Lam Thong
    Lam Thong, Thailand
  • Tiracrin
    Geymonat, Italy
  • Tiroide Amsa [+ Liothyronine]
    AMSA, Italy
  • Tiroidine
    Sanofi-Aventis, Mexico
  • Tirosint
    AMSA, Italy; IBSA, Slovakia; IBSA, United States; IBSA Farmaceutici Italia Srl., Greece; IBSA Scandinavia, Denmark; Proton Pharma, Greece
  • Tirosint 100mcg
    IBSA, Switzerland
  • Tirosint 112mcg
    IBSA, Switzerland
  • Tirosint 125mcg
    IBSA, Switzerland
  • Tirosint 137mcg
    IBSA, Switzerland
  • Tirosint 13mcg
    IBSA, Switzerland
  • Tirosint 150mcg
    IBSA, Switzerland
  • Tirosint 175mcg
    IBSA, Switzerland
  • Tirosint 200mcg
    IBSA, Switzerland
  • Tirosint 25mcg
    IBSA, Switzerland
  • Tirosint 50mcg
    IBSA, Switzerland
  • Tirosint 75mcg
    IBSA, Switzerland
  • Tirosint 88mcg
    IBSA, Switzerland
  • Tiroxin
    Siegfried, Colombia
  • Tivoral
    Galenika, Bosnia & Herzegowina; Galenika AD, Serbia
  • Tyroid
    ACI, Bangladesh
  • Unithroid
    Jerome Stevens Pharmaceuticals, United States
  • Wethyrox [veterinary use]
    WDT, Germany
  • Wolarex
    Teva Pharmaceuticals, Poland
  • You Xian
    Kangpu Pharmaceutical, China
  • Ze Ning
    Sichuan Hairong Pharmaceutical Co., Ltd, China
  • Eferox Jod [+ Potassium Iodide]
    Aristo Pharma, Germany
  • Eltroxin
    Aspen Oss, Netherlands
  • Leventa [veterinary use]
    MSD, Germany; MSD Animal Health, Italy; Selectavet, Germany
  • Levothyroxine CF
    Centrafarm, Netherlands
  • Levothyroxine Na Sandoz
    Sandoz, Japan
  • Levothyroxine Nycomed
    Takeda Nederland, Netherlands
  • Levothyroxine Sodium
    Fera Pharmaceuticals, United States
  • Levothyroxine Stada
    STADA Nordic, Sweden
  • L-Thyroxin Henning 75 plus [+ Potassium Iodide]
    Henning Berlin, Germany
  • L-Thyroxin Jod Aristo [+ Potassium Iodide]
    Aristo Pharma, Germany
  • L-Thyroxine-Christiaens 100mcg
    Takeda, Luxembourg
  • L-Thyroxine-Christiaens 125mcg
    Takeda, Luxembourg
  • L-Thyroxine-Christiaens 150mcg
    Takeda, Luxembourg
  • L-Thyroxine-Christiaens 175mcg
    Takeda, Luxembourg
  • L-Thyroxine-Christiaens 200mcg
    Takeda, Luxembourg
  • L-Thyroxine-Christiaens 25mcg
    Takeda, Luxembourg
  • L-Thyroxine-Christiaens 50mcg
    Takeda, Luxembourg
  • L-Thyroxine-Christiaens 75mcg
    Takeda, Luxembourg
  • Oroxine
    Aspen, Sweden
  • Synthroid
    BGP Pharma, Canada
  • Thevier 50
    Aspen Pharma, Germany
  • Thyradin S
    ASKA Seiyaku Asuka, Japan
  • Thyradin S 0.01%
    ASKA Seiyaku Asuka, Japan
  • Thyrofix
    Uni-Pharma, Sweden
  • Tirosint
    IBSA, Netherlands

Glossary

TermDefinition
BANBritish Approved Name
BANMBritish Approved Name (Modified)
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The Drugs.com international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.