[Changes of the blood gases following the application of naloxon (author's transl)].

74 patients, undergoing gynaecological operations under neuroleptanesthesia were subdivided into 4 groups, each receiving Naloxone in different doses postoperatively. For a longer period of time tidal volume, respiratory rate, minute ventilation, blood gas volues and pain index were recorded. From the results one can conclude that 0.1-0.2 mg Naloxone i.v. seems to be the most effective dose to reverse opiate-induced respiratory depression. The initial i.v. dose should be followed by an i.m. dose of 0.2 mg, if required.