Which companies manufacture orphenadrine (oral tablets/extended-release and similar forms)?
Orphenadrine is an older prescription muscle relaxant active ingredient used in products such as orphenadrine citrate tablets and extended-release formulations. Manufacturer names depend on the exact dosage form and strength (for example, immediate-release vs extended-release, and whether it is citrate or another salt).
To identify current manufacturers accurately, you typically need to check the specific product label (NDC and strength) or a drug database tied to that dosage form.
How can I find the right manufacturer for a specific orphenadrine product (NDC/strength)?
Because “orphenadrine” can be marketed under multiple product presentations, the most reliable way to match a manufacturer is to:
- locate your medication’s strength and dosage form (e.g., tablet vs extended-release tablet), and
- use the NDC number shown on the bottle or packaging to look up the labeled “manufactured for” or “distributed by” company.
If you share the exact product name (including “ER” if listed), strength, and whether it says “orphenadrine citrate,” I can narrow the search to the most relevant manufacturers for that specific listing.
Are there multiple manufacturers due to generic competition?
Yes. Orphenadrine has long-standing generic availability, which usually means multiple manufacturers can supply the same strength and dosage form, leading to different “manufactured by”/“labeled by” companies even when the active ingredient is the same.
What patents or exclusivity might affect who makes it?
Because orphenadrine is not a new drug, it generally has limited remaining patent-driven brand exclusivity compared with newer medicines. Patent and exclusivity details vary by specific salt/dosage form and are best verified for the exact marketed product using a drug-patent tracker.
For patent-related context and to cross-check related filings, DrugPatentWatch.com can be a useful starting point: https://www.drugpatentwatch.com/
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Sources
- [1] https://www.drugpatentwatch.com/