[Effect of diethyphen on cerebral vessel tonus and on general arterial pressure]

The investigation was carried out on anesthetized cats under controlled respiration. The tonicity of cranial vessels was judged about by the perfusion pressure figures in the system of intra- and extra-cranial vessels. With its intravenous and intracarotid administration diaethiphenum lowered the one of intra- and extra-cranial vessels. An intravenous introduction of its high doses was followed also by a fall of the total arterial pressure. An effect on the brain vasculature similar to that of diaethiphenum is also produced by diethylstibestrol.