Succinylcholine

Suxamethonium chloride, also known as suxamethonium or succinylcholine, or simply sux by medical abbreviation, is a medication used to cause short-term paralysis as part of general anesthesia.[3] This is done to help with tracheal intubation or electroconvulsive therapy.[3] It is given either by injection into a vein or muscle.[4] When used in a vein onset of action is generally within one minute and effects last for up to 10 minutes.[4&... [wikipedia]