“…Once the pharmacological and general clinicalanesthetic properties of the inhalation anesthetic, Ethrane, had been extensively documented. [1,3,8,9,11,12,13,15,16,17,19,22,24,25,26,27] it became necessary to investigate the adequacy or unsuitability of the drug for obstetrical procedures. In this connection it should be noted that chemically Ethrane is similar to Methoxyflurane, while pharmacologically it resembles Halothane moreclosely [11].…”