For which overdose is acetylcysteine used as a remedy?

• A. Beta blockers
• B. Acetaminophen
• C. Opioids
• D. Heparin

Answer: (B)

Acetylcysteine is specifically used as an antidote for acetaminophen overdose. When acetaminophen is taken in excessive amounts, it can lead to severe liver damage due to the depletion of glutathione, a key antioxidant in the liver. Acetylcysteine works by replenishing glutathione levels, thereby helping to detoxify harmful metabolites of acetaminophen and preventing or minimizing liver injury.

In cases of acetaminophen overdose, timely administration of acetylcysteine is crucial and can significantly alter clinical outcomes. It is typically administered within a specific time frame after ingestion to ensure effectiveness.

While other options listed may involve treatment protocols, acetylcysteine is uniquely designated for acetaminophen-related toxicity due to its specific mechanism of action in countering the effects of that particular medication.