Ind. Code § 35-46-9-2
As used in this chapter, "intoxicated" means under the influence of:
(5) any other substance, not including food and food ingredients (as defined in IC 6-2.5-1-20 ), tobacco (as defined in IC 6-2.5-1-28 ), or a dietary supplement (as defined in IC 6-2.5-1-16 );
so that there is an impaired condition of thought and action and the loss of normal control of an individual's faculties.
As added by P.L.40-2012, SEC.21. Amended by P.L.196-2013, SEC.19.