This course explores how a familiar everyday stimulant can become a powerful tool in the PACU. You’ll examine caffeine’s physiologic effects on the CNS, cardiovascular, and respiratory systems, and how its actions on cAMP and adenosine receptors can accelerate emergence from anesthesia without destabilizing vital signs. The content also highlights practical, evidence-based uses of caffeine in post-op care—including treatment of post-dural puncture headache and apnea of prematurity—so you can safely incorporate this low-cost, widely available drug into multimodal recovery strategies.