<s>
(	O
–	O
)	O
-2-β-Carbomethoxy-3-β-(4-fluorophenyl )	O
tropane	O
(β-	O
CFT	O
,	O
WIN	B-Library
35,428	I-Library
)	O
is	O
a	O
stimulant	O
drug	O
used	O
in	O
scientific	O
research	O
.	O
</s>
<s>
CFT	O
is	O
a	O
phenyltropane	O
based	O
dopamine	O
reuptake	O
inhibitor	O
and	O
is	O
structurally	O
derived	O
from	O
cocaine	B-Application
.	O
</s>
<s>
It	O
is	O
around	O
3-10x	O
more	O
potent	O
than	O
cocaine	B-Application
and	O
lasts	O
around	O
7	O
times	O
longer	O
based	O
on	O
animal	O
studies	O
.	O
</s>
<s>
This	O
drug	O
is	O
known	O
to	O
function	O
as	O
a	O
"	O
positive	O
reinforcer	O
"	O
(	O
although	O
it	O
is	O
less	O
likely	O
to	O
be	O
self-administered	O
by	O
rhesus	O
monkeys	O
than	O
cocaine	B-Application
)	O
.	O
</s>
<s>
CFT	O
was	O
found	O
to	O
be	O
particularly	O
useful	O
for	O
this	O
application	O
as	O
a	O
normal	O
fluorine	O
atom	O
can	O
be	O
substituted	O
with	O
the	O
radioactive	O
isotope	O
18F	O
which	O
is	O
widely	O
used	O
in	O
Positron	B-Application
emission	I-Application
tomography	I-Application
.	O
</s>
<s>
CFT	O
is	O
about	O
as	O
addictive	O
as	O
cocaine	B-Application
in	O
animal	O
studies	O
,	O
but	O
is	O
taken	O
less	O
often	O
due	O
to	O
its	O
longer	O
duration	O
of	O
action	O
.	O
</s>
<s>
Potentially	O
this	O
could	O
make	O
it	O
a	O
suitable	O
drug	O
to	O
be	O
used	O
as	O
a	O
substitute	O
for	O
cocaine	B-Application
,	O
in	O
a	O
similar	O
manner	O
to	O
how	O
methadone	O
is	O
used	O
as	O
a	O
substitute	O
for	O
opiates	O
in	O
treating	O
addiction	O
.	O
</s>
<s>
In	O
August	O
2010	O
,	O
some	O
media	O
sources	O
claimed	O
that	O
the	O
designer	O
drug	O
Ivory	O
Wave	O
contained	O
WIN	B-Library
35,428	I-Library
.	O
</s>
<s>
CFT	O
is	O
not	O
specifically	O
scheduled	O
in	O
the	O
United	O
States	O
,	O
though	O
it	O
is	O
considered	O
by	O
chemical	O
supply	O
companies	O
and	O
perhaps	O
law	O
enforcement	O
to	O
be	O
covered	O
under	O
the	O
Federal	O
Analog	O
Act	O
as	O
a	O
Schedule	O
II	O
due	O
to	O
its	O
close	O
similarity	O
in	O
structure	O
and	O
function	O
to	O
the	O
schedule	O
II	O
drug	O
cocaine	B-Application
.	O
</s>
<s>
Administering	O
100mg/kg	O
of	O
CFT	O
to	O
rats	O
only	O
resulted	O
in	O
convulsions	O
being	O
reported	O
,	O
whereas	O
CIT	B-Language
had	O
the	O
ability	O
to	O
cause	O
death	O
at	O
this	O
dose	O
.	O
</s>
