What “inactive ingredients” are in Lannett levothyroxine tablets?
Inactive ingredients (the non-medication components) can vary by the specific Lannett product strength and formulation (for example, 25 mcg, 50 mcg, 75 mcg, 88 mcg, etc.), and they may change over time.
The most reliable way to get the exact inactive ingredient list for your exact Lannett levothyroxine is to check the package insert or the label for your specific strength (and dosage form, such as tablet).
Where to find the exact inactive ingredient list for your strength
Look for sections in the prescribing information titled something like “Description,” “Inactive ingredients,” or “Composition,” which typically list the excipients by name (for example, fillers/binders like lactose, starches, and lubricants like magnesium stearate—though the actual names depend on the product).
If you tell me the strength (and whether it’s generic or a specific NDC), I can narrow it down
Inactive ingredients often differ by:
- Tablet strength
- Generics/labeler changes
- Reformulations
Reply with:
1) the levothyroxine strength on your bottle (mcg), and
2) the NDC number (if you have it),
and I’ll help you pinpoint the matching inactive ingredient list.
Why inactive ingredients matter
Inactive ingredients can be important for people with allergies or sensitivities (for example, to lactose, dyes, gluten/wheat starch, or certain preservatives), even though the active drug is the same (levothyroxine).
If you share your specific concern (e.g., lactose intolerance, dye sensitivity), I can help interpret which excipients to look for once we identify the exact product.