K-Strophanthin-β,K-Strophanthoside,Periplocymarin,and Periplocin

Summary

K-Strophanthin-β is more potent than K-strophanthoside in frogs and cats, while periplocymarin is less potent than periplocin. The decrease in the number of sugar molecules of a cardiac glycoside, therefore, may or may not be accompanied by an increase in activity.