Occurs 6-24hr after ingestion and lasts 12-24hr
The later the onset of symptoms the better the outcome
GI predominant symptoms:
Abdominal pain, vomiting and diarrhea (which may become bloody)
Abdominal pain, vomiting and diarrhea (which may become bloody)
Occurs 48hr after ingestion and lasts 12-24hr
Symptoms subside and patient appears better
Liver deteriorates silently and precipitously (LFTs begin to rise)
Occurs 2-4d after ingestion
Fulminant liver failure
Hyperbilirubinemia, coagulopathy, hepatic encephalopathy, hepatorenal syndrome
Hyperbilirubinemia, coagulopathy, hepatic encephalopathy, hepatorenal syndrome
Amanita mushrooms
Acetaminophen toxicity 
Crotinarius mushrooms
Viral hepatitis
Gyromitra mushrooms
Hepatitis A
Jimson weed
Hepatitis B