Spasmogenic qualities of prostaglandin F2α in the cat

Abstract
The concentration of prostaglandin F2.alpha. required to produce arterial spasm in an experimental model is approximately 1000-fold higher than the concentration that occurs under physiological conditions. The spasmogenic platelet factor was a substance other than prostaglandin F2.alpha. because of differences in susceptibility of the 2 substances to enzymatic digestion.