“…80 Three cases of excessive barbiturate/opioid effects were reported from 1960 to 1970. 80,84 Since then, numerous reports have described uneventful anesthetics using barbiturates and various opioids: remifentanil, 89 alfentanil, 89,90 sufentanil, 91 fentanyl, 80,81 hydromorphone 91 and morphine 80,81,81,85,89 for patients continuing to take MAOI. Other agents including propofol, 90,92 ketamine, 93 midazolam, 92 ketorolac, 92 vecuronium, 92 and atracurium 92 have also been used safely.…”