<prompt> Characterstic features of opioid withdrawal is:Rhinorrhea and lacrimationSeizuresDelirium TremorsTransient visual, tactile or auditory hallucinations  <response>: Opiod withdrawal symptoms are lacrimation,sweating, yawning, anxiety, apprehension, restlessness, rhinorrhoea and tremors seen 8-12 hours after the last dose. Ref KD Tripathi 8th ed. 