Pazuzu does not fit a simple hostile demon category, and Mesopotamian religion in general did not divide its supernatural beings into good and evil camps the way later traditions would. Surviving amulets and figurines show Pazuzu's hideous image, part lion, part bird, part scorpion, worn and displayed specifically for protection, most often against Lamashtu, a separate and more consistently dangerous demoness blamed for harming pregnant women and infants.
A being genuinely understood as dangerous, king of the wind demons and associated with famine and locusts, was nonetheless invoked because his own destructive power could be turned against a still greater threat, a common logic in Mesopotamian magical practice where danger and protection were not opposites so much as two uses of the same force, correctly directed. This ambivalence, a figure both feared and appealed to, sits uneasily with the modern popular image of Pazuzu introduced to wide audiences through the film The Exorcist, which draws on his frightening appearance while dropping the protective, apotropaic role that defined his actual use in the ancient sources. The cinematic Pazuzu is essentially a new invention wearing an ancient face, borrowing the iconography of a genuine Mesopotamian demon while discarding the specific ritual logic that made ancient people want his image in their homes.