Who makes guanfacine?

Who manufactures guanfacine?

Guanfacine is made by multiple companies, because it’s available in both branded and generic forms. The specific manufacturer can vary by country and by whether you have immediate-release (guanfacine IR) or extended-release (guanfacine ER/Tenex vs Intuniv) formulations.

How to find the exact maker of the guanfacine you have

For the most accurate answer, check the label or your pharmacy paperwork for:
- The product name (e.g., Tenex/guanfacine IR vs Intuniv/guanfacine ER)
- The manufacturer and/or “marketed by” line on the prescription bottle
- The National Drug Code (NDC), which ties the product to a specific manufacturer for that strength and dosage form

Branded vs generic: does “who makes it” change?

Yes. Branded guanfacine is produced by the original brand holder, while generics are produced by different manufacturers under approved generic labeling. That’s why two people with the same active ingredient may have different manufacturers.

Quick next step

If you tell me your country and whether it’s immediate-release or extended-release (and the strength, like 1 mg or 2 mg), I can narrow down which manufacturers are most likely for that specific product.