Abstract
Four dogs, anesthetized with Evipan-sodium, were experimented on. The adrenal venous blood specimens were collected through the lumbar route and were analysed for adrenaline by the chemical method of Bloor and Bullen.
While the administration of KCl in a dose of 30-33mg. per kg. caused a definite increase in the adrenaline secretion, the injection of KCl in the same dose as before plus MgCl2 in a dose of 10mg. per kg. produced no increase or only a small increase in the adrenaline secretion.
From these experimental results, it is concluded that MgCl2 is capable of antagonizing the accelerating action of KCl on the adrenaline secretion.
