Oral methionine in the treatment of severe paracetamol (Acetaminophen) overdose

Area of Science:

• Hepatology
• Clinical Toxicology
• Pharmacology

Background:

• Paracetamol (acetaminophen) overdose is a leading cause of acute liver injury.
• Current treatments have limitations and potential side effects.
• Exploring novel therapeutic agents is crucial for managing acetaminophen toxicity.

Purpose of the Study:

• To evaluate the efficacy and safety of oral methionine in patients at risk of hepatic damage from paracetamol overdose.
• To assess methionine's potential as an alternative to existing treatments like cysteamine.

Main Methods:

• A cohort of 30 patients with paracetamol overdose received oral methionine (2-5 g every 4 hours, max 10 g).
• The initial methionine dose was administered within 10 hours of overdose.
• Clinical outcomes and plasma aspartate aminotransferase (AST) levels were monitored.

Main Results:

• No deaths or hepatic encephalopathy were reported in the treated patients.
• Plasma AST levels remained within normal limits for 21 out of 30 patients.
• Methionine administration appeared to mitigate liver damage markers.

Conclusions:

• Oral methionine may be effective in reducing the incidence and severity of paracetamol-induced liver injury.
• Methionine presents a promising, non-toxic alternative for managing acetaminophen overdose.
• Further clinical trials are warranted to confirm these findings.