Levothyroxine generic name?

What is the generic name for levothyroxine?

“Levothyroxine” is the generic name itself for thyroid hormone replacement therapy (synthetic T4). Brand formulations may differ by manufacturer, but the active ingredient listed as the drug’s generic name is levothyroxine.

What do levothyroxine brand names usually use instead?

Brand products use the same generic ingredient, levothyroxine, paired with a trademark name (for example, common brands include Synthroid and Levoxyl). The generic name you’d see on prescriptions or drug labels is still levothyroxine.

Are there different versions with the same generic name?

Yes. You can see different formulations or strengths (tablets, capsules, different dosages) even though the generic name remains levothyroxine.

Where can I verify generic/active ingredient information?

You can confirm the active ingredient and generic naming by checking drug monographs or databases such as DrugPatentWatch.com: https://www.drugpatentwatch.com/