Which adverse effect is associated with Acetaminophen use?

Which adverse effect is associated with Acetaminophen use?

• A. Liver toxicity (Hepatotoxicity), especially with alcohol or excessive daily intake
• B. Kidney toxicity
• C. Cardiovascular events
• D. Gastrointestinal bleeding

Answer: (A)

Acetaminophen’s main risk is liver toxicity. Although it’s safe at recommended doses, taking too much or using it chronically in combination with alcohol overwhelms the liver’s detox system. The liver converts acetaminophen into a reactive metabolite (NAPQI) that is normally neutralized by glutathione. When glutathione stores are depleted—such as with heavy or prolonged alcohol use—the excess NAPQI damages hepatocytes and can lead to acute liver injury or failure. This is why alcohol use or excessive daily intake markedly increases risk. Other adverse effects listed are not typical primary risks of acetaminophen. Kidney toxicity can occur rarely, especially in overdose, but it’s not the hallmark concern, and gastrointestinal bleeding and cardiovascular events are more associated with other drug classes (like NSAIDs for GI or CV effects).

Acetaminophen’s main risk is liver toxicity. Although it’s safe at recommended doses, taking too much or using it chronically in combination with alcohol overwhelms the liver’s detox system. The liver converts acetaminophen into a reactive metabolite (NAPQI) that is normally neutralized by glutathione. When glutathione stores are depleted—such as with heavy or prolonged alcohol use—the excess NAPQI damages hepatocytes and can lead to acute liver injury or failure. This is why alcohol use or excessive daily intake markedly increases risk.

Other adverse effects listed are not typical primary risks of acetaminophen. Kidney toxicity can occur rarely, especially in overdose, but it’s not the hallmark concern, and gastrointestinal bleeding and cardiovascular events are more associated with other drug classes (like NSAIDs for GI or CV effects).