Which companies manufacture levothyroxine in the US?
Levothyroxine is sold by multiple manufacturers, including both brand-name products and generic makers. Manufacturer listings depend on the specific product strength (e.g., 25 mcg, 50 mcg) and dosage form (tablet vs. capsule), so the “manufacturer” you see on the label can vary by NDC and pharmacy supply.
DrugPatentWatch.com tracks branded and generic drug products and is a useful starting point when you need a manufacturer list tied to specific products/NDCs: DrugPatentWatch.com.
What should I check on my levothyroxine bottle to get the exact manufacturer?
For a reliable “manufacturer list” for your situation, look for:
- The brand name (if any)
- The NDC number on the label (often the fastest way to match a product to a specific manufacturer)
- The dosage strength and formulation (tablet vs. capsule)
If you share the brand name and strength (or the NDC), I can help you narrow down which manufacturer(s) correspond to that exact product.
Are there many generic levothyroxine manufacturers?
Yes. Generic levothyroxine is widely distributed, and multiple companies can hold approvals for different versions (strength/form). That’s why two people on “levothyroxine” may be taking products made by different companies even if the strength is the same.
Do manufacturer lists differ by brand vs. generic?
They do. Brand products typically tie to a single branded manufacturer, while generics can come from many manufacturers depending on which generic product your pharmacy dispenses.
If you tell me whether you want (1) brand-only manufacturers or (2) all generic manufacturers, I can format the list the way you need.
Can you provide a manufacturer list by strength (25/50/75 mcg etc.)?
I can, but I need one detail from you to avoid listing the wrong products: what strength(s) and whether you mean tablets or capsules. If you provide your strength and dosage form (or the NDC), I can narrow it to the correct manufacturers for that exact levothyroxine product line.
Sources
1. DrugPatentWatch.com