First 24 hours: asymptomatic or aspecific symptoms such as nausea and vomiting, malaise, anorexia, abdominal pain}In patients with mild poisoning, symptoms will resolve and patient will recover. In patients with severe poisoning, symptoms will progress to the next phase}In 24-72 hours: progressive signs of hepatic toxicity (e.g. right upper quadrant abdominal pain, enlarged tender liver, increased transaminases)}After 72 hours: signs and symptoms peak at 72-96 hours and this may be followed by full recovery in 5-7 days or progression into irreversible hepatic failure (less frequently renal failure) and death