Federal Law Definition of
''controlled substance analogue'' 21 USC 802(32)(A)Except as provided in
subparagraph (B), the term ''controlled substance analogue'' means a substance -
(i) the chemical structure of which is substantially similar to the chemical structure
of a controlled substance in schedule I or II;
(ii) which has a stimulant, depressant, or hallucinogenic effect on the central nervous
system that is substantially similar to or greater than the stimulant, depressant, or
hallucinogenic effect on the central nervous system of a controlled substance in schedule
I or II; or
(iii) with respect to a particular person, which such person represents or intends to
have a stimulant, depressant, or hallucinogenic effect on the central nervous system that
is substantially similar to or greater than the stimulant, depressant, or hallucinogenic
effect on the central nervous system of a controlled substance in schedule I or II.
(B) Such term does not include -
(i) a controlled substance;
(ii) any substance for which there is an approved new drug application;
(iii) with respect to a particular person any substance, if an exemption is in effect
for investigational use, for that person, under section 355 of this title to the extent
conduct with respect to such substance is pursuant to such exemption; or
(iv) any substance to the extent not intended for human consumption before such an
exemption takes effect with respect to that substance.