Medications & Supplements: What Can Strain Your Liver
This is different from the Supplements page — this is general awareness of substances linked to liver strain, not a shopping guide. Never stop or change a prescribed medication based on this page; talk to your prescribing doctor first.
Acetaminophen / Paracetamol
Safe at recommended doses, but the single most common cause of acute liver failure when taken in excess — risk rises further when combined with alcohol.
NSAIDs
Ibuprofen, naproxen, and diclofenac at high doses or with long-term use — especially combined with alcohol — carry added liver risk.
Certain Antibiotics
Amoxicillin-clavulanate (Augmentin) is a leading antibiotic cause of drug-induced liver injury, usually from an immune-type reaction.
Antiseizure Medications
Phenytoin and carbamazepine can occasionally trigger immune-related liver inflammation, more often early in treatment.
Methotrexate
Used for autoimmune conditions and some cancers — long-term use, especially with alcohol, is linked to liver inflammation and scarring, so routine monitoring is standard practice.
Antifungal Medications
Fluconazole, itraconazole, and ketoconazole can affect the liver with extended use, ranging from mild enzyme changes to rarer, more serious injury.
Herbal & "Natural" Supplements
Kava, black cohosh, comfrey, and high-dose green tea extract are among the herbal products most consistently linked to liver injury — "natural" doesn't mean the risk is zero.
Statins
Widely and safely used long-term. They can cause a temporary rise in liver enzymes, which typically normalizes — routine bloodwork is precautionary, not usually a cause for alarm.