<prompt> The neuromuscular blocker that does not need reversal of action by neostigmine at the end of the operation is:d-TubocurarineDoxacuriumPipecuroniumMivacurium  <response>: Long acting non-depolarizing competitive NM blocking agents require reversal with neostigmine. Mivacurium is the shoest acting NDMR. It does not require reversal due to its sho duration of action. Mivacurium can be used in day care surgery. 