Jane Kelley wrote in a message to Mark Probert:
MP>JK>I've told you several times to go look it up in the official manual
MP>JK>of mental health in this nation, the DSM IV.
MP>Jane, the degree of "addictiveness" of any substance is NOT cited in
MP>either the DSM III or IV. That is not the function of the DSM.
 JK> HAVE YOU GONE AND LOOKED ANYTHING UP LATELY?  Had you done so, you
 JK> would know that cocaine is now listed as being addictive, that the
 JK> symptoms of addiction to various drugs are also listed, and that
 JK> among those are the information concerning marijuana.
Wrong Jane.  Mark is right about DSM IV, and you have obviously either
not read it or understood it.  The word addict or addiction is not
used relative to marijuana.  I haven't checked the part about cocaine,
but I doubt that DSM IV uses these terms relative to any drug -- as Mark
has accurately pointed out, defining, determining, and evaluating the
"addictiveness" of any substance is NOT within the scope of DSM IV.
Notwithstanding this, DSM IV recognizes that marijuana does not
"generally" cause "physiological dependence".  (It is not apparent
what DSM IV means by "generally" here because it nowhere provides
any information regarding any studies demonstrating that cannabis
EVER causes physiological dependence.)  Furthermore, DSM IV points
out that there is no reliable evidence that stopping marijuana use
results in withdrawal symptoms.  See page 216, Jane.  Ask the
reference librarian at your library to show you where to find the
book.
--- 
---------------