What is the action of Vecuronium (Norcuron)?

Vecuronium (Norcuron) is classified as a neuromuscular blocking agent, specifically a non-depolarizing muscle relaxant. Its primary action is to induce muscle paralysis by blocking the transmission of nerve impulses at the neuromuscular junction, which inhibits acetylcholine from binding to its receptors on the muscle cell membrane. This blockade leads to a temporary paralysis of skeletal muscles, which is particularly useful in situations where intubation or muscle relaxation is needed during surgical procedures or in critical care settings.

The paralysis induced by Vecuronium is not associated with any increase in muscle tone or enhancement of motor function, nor does it affect the respiratory rate directly; however, the administration of the drug can necessitate artificial ventilation because it paralyzes the respiratory muscles. This highlights the utility of Vecuronium in clinical settings where controlled paralysis is essential for patient management.