Tag: Euthyrox

While there is no identical generic version of Euthyrox, the active ingredient, levothyroxine, is widely available in generic form. This distinction is crucial for patients, as differences between brand and generic formulations can impact treatment outcomes due to the medication's narrow therapeutic index.

Affecting nearly 5 out of 100 Americans, hypothyroidism requires consistent treatment, often with levothyroxine [1.5.4]. Recent news has many patients asking: Is Euthyrox being discontinued? As of July 2025, the manufacturer EMD Serono has announced the discontinuation of all Euthyrox presentations [1.2.2, 1.3.3].

While both Euthyrox and Tirosint contain the same active ingredient, levothyroxine sodium, they are not identical. The primary difference lies in their inactive ingredients, or excipients, which can impact absorption and patient tolerance.