Thanatizine was a pharmaceutical substance capable of inducing a condition resembling suspended animation in a subject. While under its influence, a Human's respiration would decrease to roughly ten breaths per hour, and their heartrate would be reduced to below one beat each minute.
It found application on Haruun Kal as a means of retarding the progression of fever wasp infestations, thereby allowing for their extraction.
Cronal made use of a subsequent iteration of this drug, known as Thanatizine II.