Nish'ta

Nish'ta is a biological compound employed by the Goa'uld as a powerful form of mind-control. Nish'ta is an organism delivered in a gaseous form and is absorbed by the body's tissues, rendering the subject's mind "extremely pliable" and open to suggestion.

An electrical shock, such as that delivered by a zat'nik'tel discharge, will kill the organism and free the victim from its control. Once freed, the subject is immune from repeat infection.

Apophis used tyhe mind-controlling agent, which Teal'c later identified as nish'ta, to brain-wash Teal'c's son Rya'c and turn him against him. SG-1 infiltrated the Goa'uld Seth's compound on Earth, where he used nish'ta to control his "followers" -- including Jack, Sam and Daniel.