Conditions and symptoms
What Does Liver Damage Mean on a Medicine Label?
Liver damage · say it: LIV-er DAM-ijAlso written: liver injury, liver warning, drug-induced liver injury, DILI, hepatic injury
Short answer
Liver damage means injury to liver cells. On medicine labels it is a warning that taking too much, or mixing with alcohol, can harm the liver.
What it means
Liver damage means the liver's cells have been injured, so it may not work properly. Causes include alcohol, viruses, fatty liver and some medicines or supplements. It can be sudden (acute) or build up over time. Signs can include nausea, tiredness, pain under the right ribs, dark urine and yellow skin or eyes, but early damage may cause no symptoms. Taking too much acetaminophen (paracetamol) needs urgent medical help even if you feel well.
The phrase is best known from the 'Liver warning' on over-the-counter acetaminophen products: 'This product contains acetaminophen. Severe liver damage may occur if you take more than the maximum daily amount, with other drugs containing acetaminophen, or 3 or more alcoholic drinks every day.' Many cold, flu and sleep products also contain acetaminophen, so doubling up is a common cause. Prescription labels may warn about liver damage and recommend blood tests.
Hepatotoxicity is the technical word for a medicine harming the liver. Hepatitis means liver inflammation; cirrhosis means long-term scarring.
Where you may see it
📄 How it looks on a report
Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take more than the maximum daily amount or with other drugs containing acetaminophen.
🙅 What it does not mean
- Following the label dose does not usually cause liver damage in healthy adults.
- Feeling fine after taking too much does not mean you are safe; get help.
- It is not only alcohol that harms the liver; medicines and supplements can too.
🗒️ Questions to ask your doctor
💊 Medicines whose labels mention “Liver damage”
Plain-English explanations of each medicine, from its official FDA label.
- Acetaminophen
A pain reliever and fever reducer
- Ampicillin Sodium
a penicillin-type antibacterial medicine
- Divalproex Sodium
An anti-epileptic (anti-seizure) drug of the valproate type. The label also uses it to treat manic episodes of bipolar disorder and to prevent migraine headaches.
- Fluconazole
an azole antifungal medicine, a type of medicine that treats fungal (yeast) infections
- Hydroxychloroquine
an antimalarial and antirheumatic drug, which means it is used for malaria and for certain joint and immune conditions
- Isoniazid
An antibacterial medicine of the antimycobacterial type, used against tuberculosis bacteria
- Methotrexate
A dihydrofolate reductase inhibitor, a type of medicine that works against folate (a vitamin-like substance cells use to grow and divide). The FDA pharmacologic class is not listed on the label.
- Pioglitazone
a diabetes medicine of the thiazolidinedione type
- Rifampin
an antibiotic of the rifamycin type
- Semaglutide
A GLP-1 receptor agonist, a type of medicine that works like the natural GLP-1 hormone in the body
🔗 Read more from trusted sources
- “Liver damage” on MedlinePlus ↗
US National Library of Medicine
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General information about a medical word, not advice about your own results. Ask the clinician who ordered the test what it means for you.