Aspirin and ibuprofen block the __________. A) release of arachidonic acid from the plasma membrane B) action of phospholipase A₁ C) action of phospholipase A₂ D) action of lipoxygenase E) action of cyclooxygenase

Question

Quizplus · Accepted Answer

Aspirin and ibuprofen are nonsteroidal anti-inflammatory drugs (NSAIDs) that block the action of cyclooxygenase (COX) enzymes, which are responsible for the synthesis of prostaglandins and thromboxanes from arachidonic acid. Inhibition of COX by these drugs is the mechanism responsible for their anti-inflammatory, analgesic, and antipyretic effects. Therefore, the correct answer is E.

Aspirin and Ibuprofen Block the __________