Thyroid medication brand and generic names
Levothyroxine pairs
| Brand name | Generic name | Class or type | Route / form |
|---|---|---|---|
| Synthroid | levothyroxine | Thyroid hormones | Oral tablet |
| Levoxyl | levothyroxine | Thyroid hormones | Oral tablet |
Many additional levothyroxine brands exist; narrow interchangeability rules apply in practice.
Understanding thyroid medications
Levothyroxine is T4. Liothyronine (T3) products such as Cytomel are separate study entries when your list includes them.
Distinguish levothyroxine from antithyroid drugs such as methimazole when sorting endocrine flashcards.
Naming patterns and memory tips
Synthroid and Levoxyl both map to levothyroxine—practice generic-first recall, then list any acceptable brand.
Commonly confused thyroid names
Levothyroxine and liothyronine
Levothyroxine is T4; liothyronine is T3. Different ingredients despite similar spellings.
Levoxyl and Lanoxin
Levoxyl–levothyroxine is thyroid hormone; Lanoxin–digoxin is a cardiac glycoside.