Potassium cyanide is also a popular drug used for euthanasia.
Potassium cyanide is a compound with the formula KCN. This colorless crystalline salt, similar in appearance to sugar, is highly soluble in water.
Aprobarbital, sold as Oramon, Somnifaine, and Allonal, is a barbiturate derivative invented in the 1920s by Ernst Preiswerk. It has sedative, hypnotic and anticonvulsant properties, and was used primarily for the treatment of insomnia. used as an emergency treatment for seizures, and to cause you to fall asleep for surgery.