L484 Pill: What Is It?
Identifying the white oblong tablet with imprint L484 — acetaminophen 500 mg (Extra Strength Tylenol generic) — and understanding acetaminophen safety.
What Is the L484 Pill?
A white oblong tablet stamped with L484 is identified as acetaminophen 500 mg — the generic equivalent of Extra Strength Tylenol. It is manufactured by LNK International, a company that produces store-brand and private-label over-the-counter medications for major retailers including CVS, Walmart, Walgreens, and others.
The "L" prefix in the imprint is associated with LNK International products. Acetaminophen (also known as paracetamol outside the United States) is one of the most widely used medications in the world and is available without a prescription. It is used to relieve mild to moderate pain and to reduce fever.
Physical Description
- Shape: Oblong / caplet
- Color: White to off-white
- Imprint: L484 on one side, plain on the other
- Size: Approximately 19 mm in length
Despite being an over-the-counter medication, pharmacist confirmation is always valuable if you are uncertain about a tablet's identity. The L484 imprint can be found in pill identification databases including the FDA's National Drug Code directory.
Medical Uses
Acetaminophen is indicated for the temporary relief of:
- Minor aches and pains including headache, muscle aches, backache, toothache, and menstrual cramps
- Minor pain of arthritis
- The common cold and sore throat
- Fever reduction
Unlike NSAIDs (such as ibuprofen or naproxen), acetaminophen does not have significant anti-inflammatory properties and does not irritate the stomach lining, making it a preferred option for people with certain gastrointestinal conditions or who cannot tolerate NSAIDs.
Important Safety Information
Although acetaminophen is available over the counter and is generally considered safe when used as directed, it carries significant risks when misused:
- Liver toxicity: Acetaminophen is the leading cause of acute liver failure in the United States. The liver can be severely damaged by excessive amounts, sometimes even at amounts only moderately above recommended levels, especially in people who drink alcohol regularly or have underlying liver conditions.
- Hidden acetaminophen: Acetaminophen is found in hundreds of over-the-counter and prescription products — including cold medicines, sleep aids, and prescription opioid combinations (like Percocet and Vicodin). Combining these products can lead to accidental overdose without realizing it.
- Alcohol interaction: Combining acetaminophen with alcohol significantly increases the risk of liver damage.
Disclaimer
Only a licensed pharmacist or prescribing physician can confirm the identity of a medication. If you are uncertain about a tablet you have found, consult a pharmacist. Always read medication labels and package inserts carefully.
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Use the Free PillID Identifier →Frequently Asked Questions
The L484 imprint on a white oblong tablet identifies it as acetaminophen 500 mg, the generic equivalent of Extra Strength Tylenol. It is a widely available over-the-counter pain reliever and fever reducer manufactured by LNK International.
Yes. The L484 tablet contains the same active ingredient (acetaminophen 500 mg) as Extra Strength Tylenol. LNK International produces store-brand and generic versions of acetaminophen under various house-brand labels for major retailers, all using the L-prefix imprint series.
Yes. Acetaminophen is one of the most common causes of acute liver failure in the United States, most often from accidental overdose. Exceeding the maximum recommended daily amount — or combining it with alcohol or other acetaminophen-containing products — can cause serious and potentially fatal liver damage. Always follow package directions and consult a pharmacist or doctor if unsure.