The Journal of General Physiology, Vol 33, 729-744,
Copyright © 1950 by The Rockefeller University Press
DRUG AND ION EFFECTS IN FROG MUSCLE
Abraham M. Shanes 1
1 From the Department of Physiology and Biophysics, Georgetown University School of Medicine, Washington, D. C.
Procaine, cocaine, pyribenzamine, antistine, and phosphate decrease the uptake of water by frog sartorii in a Ringer solution in which potassium has been substituted for sodium; all but the last two leave the swelling in hypotonic Ringer practically unaltered. They also decrease the depolarizing action of potassium. These effects are considered indicative of reduced membrane permeability to potassium.
Submitted on May 1, 1950