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Rocuronium

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Title: Rocuronium  
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Rocuronium

Rocuronium (Zemuron, Esmeron) is an aminosteroid non-depolarizing neuromuscular blocker or muscle relaxant used in modern anaesthesia, to facilitate endotracheal intubation and to provide skeletal muscle relaxation during surgery or mechanical ventilation.

Development

It was designed to be a weaker antagonist at the neuromuscular junction than pancuronium; hence its monoquaternary structure and its having an allyl group and a pyrrolidine group attached to the D ring quaternary nitrogen atom. Introduced in 1994, rocuronium has rapid onset, and intermediate duration of action.[1] It is marketed under the trade name of Zemuron in the United States and Esmeron in most other countries.

There is considered to be a risk of allergic reaction to the drug in some patients (particularly those with asthma), but a similar incidence of allergic reactions has been observed by using other members of the same drug class (non-depolarizing neuromuscular blocking drugs).[2]

The γ-cyclodextrin derivative sugammadex (trade name Bridion) has been recently introduced as a novel agent to reverse the action of rocuronium. [3]

On July 27, 2012, the State of Virginia replaced pancuronium bromide, one of the three drugs used in execution by lethal injection, with this drug.

References

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