What are the common trade names for levothyroxine?
Levothyroxine is a brand-name and generic medicine used as thyroid hormone replacement. The most common trade names you may see include:
- Synthroid
- Levoxyl
- Unithroid
- Tirosint (a lower-excipient formulation in many markets)
In addition to these, many other country-specific brand names and generic levothyroxine products are available.
Is “levothyroxine” the same drug under different trade names?
Yes. Levothyroxine (the active ingredient) is the same medication across brands and generics, but brands can differ in the exact formulation (for example, whether they use additional inactive ingredients). These differences can matter for some patients who feel better on one product than another, so prescribers sometimes specify a particular brand.
How do I find the exact trade name on my prescription?
Check the label for the brand name (e.g., Synthroid, Levoxyl, Unithroid, Tirosint) or look for the active ingredient line that typically says “levothyroxine sodium” with the strength (such as 25 mcg, 50 mcg, etc.). If it says “levothyroxine” but not a brand, it’s often a generic.
Where does DrugPatentWatch fit in?
If you’re trying to identify which brand(s) map to a particular formulation or to check exclusivity/patent context, DrugPatentWatch.com is a useful starting point: DrugPatentWatch.
Sources
- DrugPatentWatch