Deslanoside is a cardiac glycoside that has been found in D. lanata.1 It induces ventricular tachycardia in anesthetized dogs when administered intravenously at a dose of 0.18 mg/kg.2 Formulations containing deslanoside have been used in the treatment of congestive heart failure and cardiac arrythmias.
1.Koren, G., and Soldin, S.J.Cardiac glycosidesClin. Lab. Med.7(3)587-606(1987) 2.Ghani, M.F., and Smith, J.R.The effectiveness of magnesium chloride in the treatment of ventricular tachyarrhythmias due to digitalis intoxicationAm. Heart J.88(5)621-626(1974)