What is the antidote for acetaminophen overdose?

What is the antidote for acetaminophen overdose?

• A. Activated charcoal
• B. N-acetylcysteine
• C. Flumazenil
• D. Atropine

Answer: (B)

The antidote for acetaminophen overdose is N-acetylcysteine. This medication acts by replenishing glutathione levels in the liver and detoxifying the harmful metabolite of acetaminophen, known as NAPQI (N-acetyl-p-benzoquinone imine). In cases of overdose, acetaminophen can overwhelm the liver's ability to process the drug safely, leading to potentially severe liver damage. N-acetylcysteine is effective when administered within a certain time frame after the overdose, making it a critical intervention in the management of acetaminophen toxicity. Activated charcoal, while it can reduce absorption of acetaminophen if given shortly after ingestion, does not reverse the toxic effects or protect the liver like N-acetylcysteine does. Flumazenil is an antidote used specifically for benzodiazepine overdoses and is not relevant in the context of acetaminophen. Atropine is used to treat certain types of poisonings and bradycardia but has no role in acetaminophen toxicity. Therefore, N-acetylcysteine stands out as the targeted and effective treatment for acetaminophen overdose.

The antidote for acetaminophen overdose is N-acetylcysteine. This medication acts by replenishing glutathione levels in the liver and detoxifying the harmful metabolite of acetaminophen, known as NAPQI (N-acetyl-p-benzoquinone imine). In cases of overdose, acetaminophen can overwhelm the liver's ability to process the drug safely, leading to potentially severe liver damage. N-acetylcysteine is effective when administered within a certain time frame after the overdose, making it a critical intervention in the management of acetaminophen toxicity.

Activated charcoal, while it can reduce absorption of acetaminophen if given shortly after ingestion, does not reverse the toxic effects or protect the liver like N-acetylcysteine does. Flumazenil is an antidote used specifically for benzodiazepine overdoses and is not relevant in the context of acetaminophen. Atropine is used to treat certain types of poisonings and bradycardia but has no role in acetaminophen toxicity. Therefore, N-acetylcysteine stands out as the targeted and effective treatment for acetaminophen overdose.