Strophanthins are cardiac glycosides in plants of the genus ''

Strophanthus ''Strophanthus'' is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1802. It is native primarily to tropical Africa, extending to South Africa, with a few species in Asia from southern India to New Guinea and ...

''. The singular may refer to: *

g-Strophanthin Ouabain or (from Somali ''waabaayo'', "arrow poison" through French ''ouabaïo'') also known as g-strophanthin, is a plant derived toxic substance that was traditionally used as an arrow poison in eastern Africa for both hunting and warfare. Ou ...

, also known as ouabain *

k-Strophanthin k-Strophanthidin is a cardenolide found in species of the genus ''Strophanthus''. It is the aglycone of k-strophanthin, an analog (chemistry), analogue of ouabain. k-strophanthin is found in the ripe seeds of Strophanthus kombe, Strophanthus kom ...

It is commonly used in euthanasia (lethal injections)

See also