Rocuronium Bromide is the bromide salt form of Rocuronium, a fumarate, aminosteroid type non-depolarizing neuromuscular blocking agent that relaxes the skeletal muscle. It was introduced in 1994, and has a similar pharmacokinetic profile to Vecuronium, as it is a derivative of the 3-hydroxy metabolite of Vecuronium. It competes with acetylcholine in binding to cholinergic receptors at neuromuscular junctions. Rocuronium Bromide is soluble in water, ethanol, and DMSO.