Also available in 1 mg, 5 mg, 25 mg, 50 mg, 100 mg and bulk. Please contact Fisher for quotes. Pipecuronium bromide (RGH-1106) is a selective and potent nAChR antagonist that also acts as a non-depolarising steroidal neuromuscular blocker, causing muscle relaxation, often in conjunction with antibiotics. Purity 100%