Also available in 1 mL, 10 mg, 50 mg, 100 mg, 500 mg and bulk. Please contact Fisher for quotes. Rocuronium bromide (ORG 9426) is a muscle relaxant or aminosteroid non-depolarizing neuromuscular blocker. During surgery or mechanical ventilation, it is used to facilitate endotracheal intubation and to provide skeletal muscle relaxation. Purity 99.85%