Name

pancuronium (Pavulon®)

Class

Neuromuscular blocker (Nondepolarizing)

Description/Mechanism

Pancuronium produces complete muscular relaxation by binding to the nicotinic M receptors for acetylcholine at the neuromuscular junctions, without initiating depolarization of the muscle membrane.

As the concentration of acetylcholine rises in the neuromuscular junction, pancuronium is displaced and muscle tone is regained.

Pancuronium is used to optimize conditions for endotracheal intubation and assisted ventilations.

Onset

Paralysis in 3-5 minutes

Duration

45-60 minutes

Indications

Induction or maintenance of paralysis after intubation to assist ventilations

Contraindications

Known hypersensitivity to the drug

Inability to control airway and/or support ventilations with oxygen and positive pressure

Neuromuscular diseases (e.g. myasthenia gravis)

Adverse Reactions

Transient hypotension

Tachycardia

Dysrhythmias

Increased blood pressure

Excessive salivation

Pain, burning at IV injection site

Drug Interactions

Positive chronotropic drugs may potentiate tachycardias

Supplied

4mg/2ml ampule

Dose/Administration

Adult

0.1 mg/kg slow IV; repeat every 30-60 minutes as needed

Pediatric

0.04 – 0.1 mg/kg slow IV push (newborn: 0.02 mg/kg )

Special Consideration

If the patient is conscious, explain the effects of the medication prior to administration and always sedate the patient prior to using a neuromouscular blocker.

Pregnancy Safety: not established

Neuromuscular blocking agents will produce respiratory depression. Therefore, intubation and ventilatory support must be readily available.

Carefully monitor the patient and be prepared to resuscitate.

The effects of pancuronium may be reversed with neostigmine (Prostigmin) 0.05 mg/kg and should be accompanied by atropine (0.6-1.2 mg IV).

Pancuronium has no effect on consciousness or pain.

Will not stop neuronal seizure activity nor decrease CNS damage secondary to seizures.

Pancuronium is excreted in the urine; doses should be decreased for patients with renal disease.

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