<prompt> Untrue about mivacuriumMetabolized by pseudocholinesteraseReleases histamineOnset of action is earlySho duration of action  <response>: Onset of action is early Mivacurium is the non-depolarizing muscle relax, metabolized by pseudocholinesterase. The main advantage is its sho duration of action 5-10 minutes but onset is slow 2-3 minutes. Rerf: KD Tripathi 8th ed. 