What is the antipyretic effect?

What is the antipyretic effect?

• A. Promote sweating
• B. Reduce inflammation
• C. Reduce fever
• D. Lower blood pressure

Answer: (C)

The antipyretic effect is reducing fever. Fever happens when pyrogens raise the hypothalamic temperature set-point, and drugs with antipyretic action counter this by inhibiting prostaglandin E2 synthesis in the brain. That lowers the set-point back toward normal, so the body loses heat through vasodilation and sweating, bringing the temperature down. Sweating occurs as a consequence of cooling, not the primary action itself, and while some drugs like NSAIDs also reduce inflammation, the defining antipyretic effect is fever reduction. Lowering blood pressure is not related to fever control.

The antipyretic effect is reducing fever. Fever happens when pyrogens raise the hypothalamic temperature set-point, and drugs with antipyretic action counter this by inhibiting prostaglandin E2 synthesis in the brain. That lowers the set-point back toward normal, so the body loses heat through vasodilation and sweating, bringing the temperature down. Sweating occurs as a consequence of cooling, not the primary action itself, and while some drugs like NSAIDs also reduce inflammation, the defining antipyretic effect is fever reduction. Lowering blood pressure is not related to fever control.