Rocuronium is a medication used primarily as a muscle relaxant during surgical procedures or in intensive care settings. It works by blocking the transmission of nerve impulses to the muscles, leading to temporary paralysis. This allows for easier intubation and better surgical conditions. The effects of rocuronium typically begin within a few minutes and can last for about 30 to 60 minutes, depending on the dose. It is often preferred for its rapid onset and intermediate duration of action. Healthcare professionals monitor patients closely while using this drug to ensure safety and effectiveness.