How do non-steroidal anti-inflammatory drugs (NSAIDs) work in the body?

• A. By enhancing prostaglandin production
• B. By inhibiting enzymes involved in prostaglandin production
• C. By activating immune responses
• D. By promoting fever and pain

Answer: (B)

Non-steroidal anti-inflammatory drugs (NSAIDs) are primarily known for their ability to reduce inflammation, pain, and fever. They achieve this by inhibiting enzymes known as cyclooxygenases (COX-1 and COX-2). These enzymes are crucial in the biosynthesis of prostaglandins, which are lipid compounds that mediate various physiological processes, including inflammation and pain sensation.

When NSAIDs inhibit these enzymes, the production of prostaglandins is diminished. This reduction directly decreases the inflammatory response, alleviates pain, and can help normalize elevated body temperature. By targeting the inflammatory pathways mediated by prostaglandins, NSAIDs serve as effective analgesics and anti-inflammatory agents.

The other options highlight processes contrary to how NSAIDs function. Enhancing prostaglandin production would actually promote inflammation and pain, while activating immune responses would not explain the mechanism of NSAIDs, which primarily act on the inflammatory mediators. Additionally, promoting fever and pain contradicts the therapeutic goals of NSAIDs, which aim to mitigate these symptoms. Thus, the correct understanding of NSAID action lies in their ability to inhibit enzymes involved in prostaglandin production.