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Generic Euthyrox Availability

Euthyrox is a brand name of levothyroxine, approved by the FDA in the following formulation(s):

EUTHYROX (levothyroxine sodium - tablet;oral)

  • Manufacturer: PROVELL
    Approval date: May 31, 2002
    Strength(s): 0.025MG [AB2], 0.05MG [AB2], 0.075MG [AB2], 0.088MG [AB2], 0.1MG [AB2], 0.112MG [AB2], 0.125MG [AB2], 0.137MG [AB2], 0.15MG [AB2], 0.175MG [AB2], 0.2MG [AB2], 0.3MG

Has a generic version of Euthyrox been approved?

Yes. The following products are equivalent to Euthyrox:

levothyroxine sodium tablet;oral

  • Manufacturer: AMNEAL PHARMS LLC
    Approval date: February 19, 2019
    Strength(s): 0.025MG [AB2], 0.05MG [AB2], 0.075MG [AB2], 0.088MG [AB2], 0.1MG [AB2], 0.112MG [AB2], 0.125MG [AB2], 0.137MG [AB2], 0.15MG [AB2], 0.175MG [AB2], 0.2MG [AB2]
  • Manufacturer: LUPIN ATLANTIS
    Approval date: January 18, 2019
    Strength(s): 0.025MG [AB2], 0.05MG [AB2], 0.075MG [AB2], 0.088MG [AB2], 0.1MG [AB2], 0.112MG [AB2], 0.125MG [AB2], 0.137MG [AB2], 0.15MG [AB2], 0.175MG [AB2], 0.2MG [AB2]

Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Euthyrox. These medications may be counterfeit and potentially unsafe. If you purchase medications online, be sure you are buying from a reputable and valid online pharmacy. Ask your health care provider for advice if you are unsure about the online purchase of any medication.

See also: Generic Drug FAQs.

Further information

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


Term Definition
Drug Patent A drug patent is assigned by the U.S. Patent and Trademark Office and assigns exclusive legal right to the patent holder to protect the proprietary chemical formulation. The patent assigns exclusive legal right to the inventor or patent holder, and may include entities such as the drug brand name, trademark, product dosage form, ingredient formulation, or manufacturing process A patent usually expires 20 years from the date of filing, but can be variable based on many factors, including development of new formulations of the original chemical, and patent infringement litigation.
Drug Exclusivity Exclusivity is the sole marketing rights granted by the FDA to a manufacturer upon the approval of a drug and may run simultaneously with a patent. Exclusivity periods can run from 180 days to seven years depending upon the circumstance of the exclusivity grant.
AB Products meeting necessary bioequivalence requirements. Multisource drug products listed under the same heading (i.e., identical active ingredients(s), dosage form, and route(s) of administration) and having the same strength (see Therapeutic Equivalence-Related Terms, Pharmaceutical Equivalents) generally will be coded AB if a study is submitted demonstrating bioequivalence. In certain instances, a number is added to the end of the AB code to make a three character code (i.e., AB1, AB2, AB3, etc.). Three-character codes are assigned only in situations when more than one reference listed drug of the same strength has been designated under the same heading. Two or more reference listed drugs are generally selected only when there are at least two potential reference drug products which are not bioequivalent to each other. If a study is submitted that demonstrates bioequivalence to a specific listed drug product, the generic product will be given the same three-character code as the reference listed drug it was compared against.