Indiana Code Title 35. Criminal Law and Procedure § 35-46-9-2

(1) alcohol;

(2) a controlled substance;

(3) any drug (as defined in IC 9-13-2-49.1) other than alcohol or a controlled substance;  

(4) any combination of alcohol, controlled substances, or drugs;  or

(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);