Stephen J. Schueler, M.D.

Overview Risk Factors Symptoms

Acetaminophen Overdose Symptoms

Symptoms of acetaminophen overdose are divided into stages.

Stage 1 symptoms (0.5 to 24 hours post ingestion) of acetaminophen overdose include:


Stage 2 symptoms (24 to 72 hours post ingestion) of acetaminophen overdose include:

Stage 3 symptoms (72 to 120 hours post ingestion) of acetaminophen overdose include:

Stage 4 symptoms (5 to 14 days post ingestion) of acetaminophen overdose either begin to show improvement, or increasing symptoms of liver failure leading to death.

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