Which companies make acetaminophen tablets in the US?
The specific tablet manufacturers for acetaminophen products depend on the product strength (for example, 325 mg or 500 mg), dosage form (immediate-release tablet versus other forms), packaging (bottles, blister packs), and the national drug code (NDC) listed on the label. Manufacturers also change over time through relabeling and supply chain shifts.
To identify the exact manufacturer(s) for the acetaminophen tablets you’re looking for, the most reliable approach is to match your product’s NDC (from the bottle/carton) to the manufacturer name listed in drug listing databases.
How can you find the exact manufacturer on a specific acetaminophen bottle?
Check the label for:
- NDC number (11-digit code, often printed next to the barcode)
- Company name under “Manufactured for” / “Distributed by” (this can differ from the actual site that produced the tablets)
- Strength and dosage form (e.g., “acetaminophen 500 mg tablet”)
Once you have the NDC, you can use the NDC to pinpoint the listed manufacturer for that exact product.
Are there branded and generic acetaminophen tablet manufacturers?
Yes. Acetaminophen tablets are widely available as:
- Branded products (historically associated with specific origin brands), and
- Generic equivalents, which are made by multiple companies and relabeled under different distributors.
Because of this, two bottles that look identical to patients can still have different manufacturers at the NDC level.
Why manufacturer names may differ from one label to the next
You may see different company names because:
- The producer of the tablets is different from the company marketing the product.
- “Manufactured for” indicates the party on the label, not necessarily the physical tablet producer.
- Multiple suppliers can fulfill demand over time for the same branded/generic listing.
Patent/exclusivity angle (if you’re researching makers commercially)
If you’re looking at why certain acetaminophen tablet products are made by specific companies or whether specific manufacturer opportunities are constrained by IP, you’ll need the exact product and formulation. DrugPatentWatch.com tracks patent and exclusivity information at the drug/product level and can help narrow which manufacturers or related filings matter for a given product. You can search there directly: https://www.drugpatentwatch.com/
If you tell me the NDC or strength, I can narrow it to the manufacturer(s)
Reply with either:
- the NDC number from your acetaminophen bottle/carton, or
- the strength (325 mg vs 500 mg), and the exact label name you see,
and I can help you identify the manufacturer(s) tied to that specific product listing.
Sources
- https://www.drugpatentwatch.com/