Who manufactures levothyroxine?

Who makes levothyroxine tablets and capsules?

Levothyroxine is manufactured by multiple companies, depending on the drug strength and dosage form (tablets, capsules, and different generic labels). In the U.S., it’s commonly produced as a generic medicine, so the “manufacturer” on the package can vary by pharmacy brand or generic product.

Which brands are commonly made by specific manufacturers?

Brand-name levothyroxine products include Synthroid (levothyroxine sodium), which is manufactured by AbbVie (through its legacy ownership of the Synthroid brand). Other branded versions and authorized generics can have different manufacturers.

Are there different manufacturers for the same levothyroxine dose?

Yes. Even if the strength is the same (for example, 50 mcg or 100 mcg), the product you receive may be labeled with a different manufacturer because generic levothyroxine is made by multiple companies and distributed under different labels.

Where can I check the exact manufacturer for my prescription?

Check the bottle label for the “Manufacturer” or “Distributed by” line (it usually appears near the National Drug Code). If you share your exact brand/generic name and strength, I can help you identify the likely manufacturer associated with that specific product.