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A depolarizing neuromuscular blocking agent is a form of neuromuscular blocker that depolarizes the motor end plate. [15] An example is succinylcholine . Depolarizing blocking agents work by depolarizing the plasma membrane of the muscle fiber, similar to acetylcholine .
Compared to depolarizing neuromuscular blockers, non-depolarizing neuromuscular blockers tend to have slower onset times and shorter duration of actions. [ 1 ] Aside from neuromuscular blocking agents, acetylcholinesterase inhibitors and butyrylcholinesterase inhibitors act on the neuromuscular junction to enhance neurotransmitter transmission ...
Mivacurium chloride (formerly recognized as BW1090U81, BW B1090U or BW1090U) is a short-duration non-depolarizing neuromuscular-blocking drug [1] or skeletal muscle relaxant in the category of non-depolarizing neuromuscular-blocking drugs, [2] used adjunctively in anesthesia to facilitate endotracheal intubation [3] and to provide skeletal muscle relaxation during surgery or mechanical ...
Rocuronium bromide is a competitive antagonist for the nicotinic acetylcholine receptors at the neuromuscular junction. Of the neuromuscular-blocking drugs it is considered to be a non-depolarizing neuromuscular junction blocker, because it acts by dampening the receptor action causing muscle relaxation, instead of continual depolarisation which is the mechanism of action of the depolarizing ...
Pancuronium is a typical non-depolarizing curare-mimetic muscle relaxant. It competitively inhibits the nicotinic acetylcholine receptor at the neuromuscular junction by blocking the binding of acetylcholine. It has slight vagolytic activity, causing an increase in heart rate, but no ganglioplegic (i.e., blocking ganglions) activity.
Atracurium is in the neuromuscular-blocker family of medications and is of the non-depolarizing type. [1] It works by blocking the action of acetylcholine on skeletal muscles. [1] Atracurium was approved for medical use in the United States in 1983. [1] It is on the World Health Organization's List of Essential Medicines. [3]
Gallamine is a non-depolarising type of blocker as it binds to the acetylcholine receptor but does not have the biological activity of acetyl choline. Gallamine triethiodide has a parasympatholytic effect on the cardiac vagus nerve , which causes tachycardia [ 3 ] [ 4 ] and occasionally hypertension .
In this sense, tubocurarine is the prototypical adjunctive neuromuscular non-depolarizing agent. However, others before Griffith and Johnson had attempted use of tubocurarine in several situations: [6] [7] [8] some under controlled study conditions [9] [10] while others not quite controlled and remained unpublished. [11]
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