Propofol

Propofol is an intravenously administered anesthetic widely used for induction and maintenance of general anesthesia and for procedural sedation, including gastrointestinal endoscopy and total intravenous anesthesia. Its clinical effects are characterized by rapid onset and relatively short duration, but its dosing requires careful adjustment because excessive sedation can impair cardiorespiratory function. Propofol-based anesthesia may be combined with agents such as remifentanil, bupivacaine, or other regional analgesic techniques, and its administration is increasingly being evaluated with target-controlled infusion, machine-learning sedation-state prediction, and AI-assisted anesthesia management.

Beyond routine anesthesia, propofol is being investigated for effects on the nervous system and other physiological processes. Experimental studies have examined potential neurotoxicity after neonatal or maternal exposure, including region-specific molecular changes in the cortex and hippocampus, while other work has explored neuroprotective effects in cerebral ischemia–reperfusion injury and possible mitigation by vitamin D. Research has also considered its influence on glucose and lipid metabolism in diabetes and its rapid antidepressant-like activity. Peptide-based propofol prodrugs are being developed to provide triggered, more brain-selective delivery while reducing anesthetic liability; however, these approaches remain investigational.