<prompt> Pancuronium differs from tubocurarine in that:It is a depolarizing blockerIts action is not reversed by neostigmineIt can cause rise in BP on rapid I.V. injectionIt causes marked histamine release  <response>: Pancuronium possesses vagolytic activity and can cause hypeension and tachycardia on rapid i.v. injection. Pancuronium is a competitive NM blocker Non-depolarizing NM blocker. Its actions can be reversed by anticholinesterases like neostigmine. Unlike d-TC, histamine release is not seen with pancuronium. 