Incantations from the Old Babylonian orginate largely from Nippur,
although some are attested from Sippar, Babylon and Isin as well
as other localities. Additionally, 233 of those recovered are written
in Sumerian, 60 in Akkadian, and 6 are bilingual. [1]

While evidence for the compilation of incantation texts exists in
the Old Babylonian period, incantation series (that is tablets
arranged in a fixed order) remain unattested in this period. [2]
Especially when compared to the "cyptic and abbreviated"
ED incantations, the Old Babylonian corpus represent "fully
developed mythopoeic compositions with complex etiologies of disease
and tales about gods, guilt and delinquent demons." [3]
It should be noted here that the range of demons treated in the
period is substantually greater than in the Ur III incantations -
and 'the seven' make frequent appearence, usually made up of the
udug hul, ala hul, gedim hul, galla hul, dingir hul, maskim hul,
dim-me or lil-la demons.
The OB incantations referred to in modern times as the
"Forerunners to Udug-Hul", that is, the early versions
of incantations that in the Neo-Assyrian were compiled into the Udug-hul
series, have recieved special attention.