The Illinois Controlled Substances Act criminalizes the improper use of hundreds of various drugs. For instance, Chapter 720 ILCS 570/102(m) of the Illinois Compiled Statutes has defined Depressant or Stimulant Substance as follows:
"Depressant" or "stimulant substance" means:
(1) a drug which contains any quantity of (i) barbituric acid or any of the salts of barbituric acid which has been designated as habit forming under section 502 (d) of the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 352 (d)); or
(2) a drug which contains any quantity of (i) amphetamine or methamphetamine and any of their optical isomers; (ii) any salt of amphetamine or methamphetamine or any salt of an optical isomer of amphetamine; or (iii) any substance which the Department, after investigation, has found to be, and by rule designated as, habit forming because of its depressant or stimulant effect on the central nervous system; or
(3) lysergic acid diethylamide; or
(4) any drug which contains any quantity of a substance which the Department, after investigation, has found to have, and by rule designated as having, a potential for abuse because of its depressant or stimulant effect on the central nervous system or its hallucinogenic effect.
Chapter 720 ILCS 570/102(aa) of the Illinois Compiled Statutes also defines other drug terms, such as Narcotic Drug:
"Narcotic drug" means any of the following, whether produced directly or indirectly by extraction from substances of natural origin, or independently by means of chemical synthesis, or by a combination of extraction and chemical synthesis:
(1) opium and opiate, and any salt, compound, derivative, or preparation of opium or opiate;
(2) any salt, compound, isomer, derivative, or preparation thereof which is chemically equivalent or identical with any of the substances referred to in clause (1), but not including the isoquinoline alkaloids of opium;
(3) opium poppy and poppy straw;
(4) coca leaves and any salts, compound, isomer, salt of an isomer, derivative, or preparation of coca leaves including cocaine or ecgonine, and any salt, compound, isomer, derivative, or preparation thereof which is chemically equivalent or identical with any of these substances, but not including decocainized coca leaves or extractions of coca leaves which do not contain cocaine or ecgonine (for the purpose of this paragraph, the term "isomer" includes optical, positional and geometric isomers).