Used primarily as a fast-acting muscle relaxant during surgical procedures. It facilitates endotracheal intubation by inducing temporary paralysis of skeletal muscles. Commonly administered in anesthesia to improve surgical access and prevent spontaneous muscle movements. Its effects are short-lived, typically lasting only a few minutes, making it ideal for brief procedures. Also used in electroconvulsive therapy to reduce the risk of injury from seizures. Not suitable for patients with certain neuromuscular or genetic conditions due to potential adverse reactions.