Vecuronium bromide, usually just referred to as vercuronium on the series, is a pharmaceutical used to paralyze muscles. It is often used during anesthesia as it makes intubation easier and prevents reflex muscle movement during surgery. It is also used for patients on a respirator for a similar purpose. It has largely displaced curare for these purposes. It comes in ampules containing either 4 milligrams or 10 milligrams of a powder which is dissolved in distilled water before being administered.