Nearly 60 years after it was published, Carbon Dioxide Therapy remains the definitive statement on carbogen as a psychiatric tool for treatment of neurosis. The book's author administered a blend called "Meduna's Mixture", consisting of 30% carbon dioxide and 70% oxygen, to hundreds of patients, and the results of his research are copiously document in this engaging monograph. Exposure to increased levels of carbon dioxide can be dangerous or even be fatal, but Meduna encountered no serious problems in administering his 70/30 blend in sessions of up to 50 breaths in length. . . . (more)