Direct hepatotoxicity from a drug is predictable and dose-dependent.

Most commonly implicated agents include:

• Acetaminophen
• Niacin
• Aspirin
• Cocaine
• IV Amiodarone
• IV methotrexate
• Cancer chemotherapy

On the contrary, idiosyncratic prescription drug-induce liver injury is rare, unpredictable and not related to dose.

Most commonly implicated agents are:

1. Amoxicillin-clavulanate
2. Isoniazid
3. Nitrofurantoin
4. TMP-SMZ
5. Miocycline
6. Cefazolin
7. Azithromycin

Bottom line:

• Drug-induced liver injury is uncommon and can be a diagnostic challenge.
• Recognition of commonly implicated agents can help recognize/identify drug-induced liver injury.