<prompt> Which of the following is Non - opioid intravenous anaesthetic agent?TramadolPethidineFentanylKetamine  <response>: Intravenous anaesthetic agents divided into two group- Opioids Non opioids Morphine Barbiturates Fentanyl Benzodiazepine Sufentanyl Ketamine Tramadol Etomidate and propofol The most potent opioid issufentanil 