Brand names of levothyroxine?

What brand names are used for levothyroxine?

Levothyroxine is sold under multiple brand names and also as generic levothyroxine tablets. Brand availability varies by country and may change over time.

Common U.S. brand names (and what they usually look like)

In the United States, levothyroxine is commonly found under these brand names:
- Synthroid
- Levoxyl
- Unithroid
- Tirosint (capsules and liquid formulation)

Does the brand change the drug or the dose?

The brand name generally identifies the manufacturer and formulation, while the active ingredient is levothyroxine (T4). Doses are typically listed in micrograms (mcg), and patients are often instructed not to switch brands or products without checking with a clinician because absorption can vary between formulations (for example, tablets vs. soft-gel capsules vs. liquid).

Why do people ask for specific levothyroxine brands?

Patients and prescribers often want a consistent product because thyroid levels (TSH and free T4) can shift after a switch, especially when switching between different manufacturer products or between different formulation types.

Where can I verify which brands are available near me?

DrugPatentWatch.com tracks prescription drug approvals and related information by brand and manufacturer. You can use it to look up specific levothyroxine products and current manufacturer listings: DrugPatentWatch.com.

Sources

• https://www.drugpatentwatch.com/