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  • Title: [Pharmacologic effects of pipecuronium bromide (Arduan)].
    Author: Kárpáti E, Bíró K.
    Journal: Acta Pharm Hung; 1992 May; 62(3):121-6. PubMed ID: 1323913.
    Abstract:
    The experimental results in animals suggest that pipecuronium bromide offers the possibility of a neuromuscular blocking agent without side effects for surgical procedures of long duration. Its mechanism of action is twofold: 1. antagonism of acetylcholine effect at neuromuscular junction (postsynaptic nicotine receptors), 2. inhibition of acetylcholine release (presynaptic nicotine receptors). Its neuromuscular blocking potency is somewhat greater (2.0-3.0) than that of pancuronium in all species studied, and the duration of action is twice of that. It has no remarkable cumulative effect. Neostigmine rapidly and completely antagonises the neuromuscular blockade caused by pipecuronium. Certain structural properties (e.g. pipecuronium has no acetylcholine-like fragments in contrast with pancuronium and the interonium distance is also considerably larger than in pancuronium) may predict advantages. This has been proved by low vagal blocking--and ganglion--blocking potencies. On the basis of these a wide margin of safety can be expected in humans as well in preventing cardiovascular side effects. Pipecuronium is also characterized by interactions--only slight interactions--with other drugs used mainly in perioperative period.
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